Acts of the Apostles 8:30-33 The place of the scripture which he read was this, He was led as a sheep to the slaughter; and like a lamb dumb before his shearer, so opened he not his mouth:[33] In his humiliation his judgment was taken away: and who shall declare his generation? for his life is taken from the earth.
Esaias, Isaiah 53:5-8 But He was wounded on account of our sins and was bruised because of our iniquities, the chastisement of our peace was upon Him and by His bruises we were healed.[6] All we as sheep have gone astray, every one has gone astray in his way, and the Lord gave Him up for our sins.[7] And He, because of His affliction, opens not His mouth. He was led as a sheep to the slaughter, and as a lamb before the shearer is dumb, so He opens not His mouth.[8] In His humiliation His judgment was taken away. Who shall declare His generation? for His life is taken away from the Earth,
because of the iniquities of My people He was led to death.LXX
Interesting that Acts doesn't quote the whole verse. But that Ethiopian had the whole context in front of him, and should have known that this Isaiah verse is not about the gentiles.
Ephesians 3:3-7 How that by revelation he made known unto me the mystery; (as I wrote afore in few words,[4] Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)[5] Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit;[6] That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:[7] Whereof I was made a minister, according to the gift of the grace of God given unto me by the effectual working of his power.
Does Paul really say all the prophecies about Juda or Israel are about the gentiles? If so, then Jacob's Trouble is also applied to grafted-in-spiritual-israel.
Because if Israel is chastened because she didn't keep the Law and had turned to strange doctrines her fathers never knew, then the same thing applies to those who take the names of Israel or Juda: God chastens for the sake of His name. If you wear the name "Israel", then you will be chastened in the Revelation. If you are "the Israel of God", then you will receive His wrath.
Now, a little more context is needed for that verse you quoted.
The background for the context is Idolotry.
Exodus 20:5 Thou shalt not bow down to them, nor serve them; for I am the Lord thy God, a jealous God, recompensing
the sins of the fathers upon the children, to the third and fourth generation to them that hate Me,[6] and bestowing mercy on them that love Me to thousands of them, and on them that keep My Commandments.LXX
Jeremiah 31:29-30 In those days they shall certainly
not say,
The fathers ate a sour grape and the children’s teeth were set on edge.[30]
But every one shall die in his own sin; and the teeth of him that eats the sour grape shall be set on edge.
Jeremiah 31:31-36 Behold, the days come, saith the Lord, when I will make a new covenant with
the house of Israel, and with
the house of Juda:[32] not according to the Covenant which I made with their fathers in the day when I took hold of their hand to bring them out of the land of Egypt; for they abode not in My Covenant, and I disregarded them, saith the Lord.[33] For this is My Covenant which I will make with
the house of Israel; after those days, saith the Lord,
I will surely put My Laws into their mind and write them on their hearts, and I will be to them a God and they shall be to Me a people.[34] And
they shall not at all teach every one his fellow citizen, and every one his brother, saying, Know the Lord: for all shall know Me, from the least of them to the greatest of them: for I will be merciful to their iniquities, and their sins I will remember no more. {
the undivided family of Jacob}
"
they shall not at all teach every one his fellow citizen"
...
is not what Paul taught:
Ephesians 4:11 And he gave some, apostles; and some, prophets; and some, evangelists; and some,
pastors and teachers;
...
it is what the 12 Disciples are taught about the Kingdom:
Matthew 23:8-10 Neither be ye called teachers: for
one is your Teacher: Christ.
John 10:16 And other sheep I have which are not of this fold, them also I must bring: and they shall hear My voice, and there shall be one fold,
one shepherd.
(Matthew 15:24, Deuteronomy 18:18-19, John 17:6-8, Matthew 10:5-7)
\\\\\\//////
Romans 15:8 Now I say that
Jesus Christ was a minister of the circumcision for the truth of God, to confirm the promises [made] unto the fathers:
Romans 9:5 Whose [are] the fathers, and
of whom as concerning the flesh Christ [came], who is over all, God blessed for ever.
Matthew 15:24 But He answered and said, I am not sent but
unto the Lost Sheep of the house of Israel.
(The House of Judah is desolate, in Matthew 23:37-38. The Father knew the House of Judah in Jerusalem would kill His Son; so He sent the Son to the House of Israel in Galilee. And they are gathering the harvest of the Kingdom of God in Matthew 10:5-7 ...from Matthew 9:35-38... bringing forth the fruits of the Kingdom of God, Matthew 21:43.)
Romans 9:24-25 Even us, whom he hath called, not of the Jews only, but also of the Gentiles?[25] As he saith also in Osee, I will call them my people, which were not my people; and her beloved, which was not beloved.
Paul apparently doesn't have the Hosea scroll, and quotes it out of context.
Because "Not My People" was a name given to
the genetic House of Israel, because God had given them divorce papers, Isaiah 50:1. But God drags them through the chastening, and redeems them for the sake of His name, betrothing them to Himself forever. In Jeremiah,
Ephraim, head of the House of Israel, says he repents, and uses the very same words that Hosea told us would be said to the Father: "Thou art the Lord My God." So,"and her beloved" is the House of Israel. And "My people, which were Not My People" are also the House of Israel... because they are redeemed and betrothed.
Who hath ears to hear, let him hear.(Matthew 13:9)
Hosea 1:1-11
[1] The word of the Lord which came to Osee the son of Beeri, in the days of Ozias, and Joatham, and Achaz, and Ezekias, kings of Juda, and in the days of Jeroboam son of Joas, king of Israel.
[2] The beginning of the word of the Lord by Osee. And the Lord said to Osee, Go, take to thyself a wife of fornication, and children of fornication: for the land will surely go a-whoring in departing from the Lord.
[3] So he went and took Gomer, daughter of Debelaim; and she conceived, and bore him a son.[4] And the Lord said to him, Call his name Jezrael; for yet a little while, and I will avenge the blood of Jezrael on the house of Juda, and will make to cease
the kingdom of the house of Israel.[5] And it shall be, in that day, that I will break the bow of Israel in the valley of Jezrael.
[6] And she conceived again, and bore a daughter. And he said to him, Call her name, Unpitied: for
I will no more have mercy on the house of Israel, but will surely set Myself in array against them.
[7] But
I will have mercy on the house of Juda, and will save them by the Lord their God, and will not save them with bow, nor with sword, nor by war, nor by horses, nor by horsemen.
[8] And she weaned Unpitied; and she conceived again, and bore a son.[9] And he said, Call his name,
Not My people: for ye are not My people, and I am not your God.
[10] Yet the number of the children of Israel was as the sand of the sea, which shall not be measured nor numbered: and it shall come to pass, that
in the place where it was said to them, Ye are not My people, even they shall be called the sons of the living God.
[11] And
the children of Juda shall be gathered, and
the children of Israel together, and shall appoint themselves one head, and shall come up out of the land: for great shall be the day of Jezrael.
Hosea 2:1-23
[1] Say to your brother, My people, and to your sister, Pitied.[2] Plead with your mother, plead: for she is not my wife, and I am not her husband: and I will remove her fornication out of my presence, and her adultery from between her breasts:[3] that I may strip her naked, and make her again as she was at the day of her birth: and I will make her desolate, and make her as a dry land, and will kill her with thirst.[4] And I will not have mercy upon her children; for they are children of fornication.[5] And their mother went a-whoring: she that bore them disgraced them: for she said, I will go after my lovers, that give me my bread and my water, and my garments, and my linen clothes, my oil and my necessaries.
[6] Therefore, behold, I hedge up her way with thorns, and I will stop the ways, and she shall not find her path.[7] And she shall follow after her lovers, and shall not overtake them; and she shall seek them, but shall not find them: and she shall say, I will go, and return to my former husband; for it was better with me than now.
[8] And she knew not that I gave her her corn, and wine, and oil, and multiplied silver to her: but she made silver and gold images for Baal.[9] Therefore I will return, and take away my corn in its season, and my wine in its time; and I will take away my raiment and my linen clothes, so that she shall not cover her nakedness.[10] And now I will expose her uncleanness before her lovers, and no one shall by any means deliver her out of My hand.[11] And I will take away all her gladness, her feasts, and her festivals at the new moon, and her sabbaths, and all her solemn assemblies.[12] And I will utterly destroy her vines, and her fig-trees, all things of which she said, These are my hire which my lovers have given me: and I will make them a testimony, and the wild beasts of the field, and the birds of the sky, and the reptiles of the earth shall devour them.[13] And I will recompense on her the days of Baalim, wherein she sacrificed to them, and put on her ear-rings, and her necklaces, and went after her lovers, and forgot Me, saith the Lord.
[14] Therefore, behold, I will cause her to err, and will make her as desolate, and will speak comfortably to her.[15] And I will giver her possessions from thence, and the valley of Achor
* to open her understanding: and she shall be afflicted there according to the days of her infancy, and according to the days of her coming up out of the land of Egypt.
[16] And it shall come to pass in that day, saith the Lord, that she shall call Me, My husband, and shall no longer call me Baalim.[17] And I will take away the names of Baalim out of her mouth, and their names shall be remembered no more at all.[18] And I will make for them in that day a covenant with the wild beasts of the field, and with the birds of the sky, and with the reptiles of the earth: and I will break the bow and the sword and the battle from off the earth, and will cause thee to dwell safely.[19] And
I will betroth thee to myself for ever; yea, I will betroth thee to myself in righteousness, and in judgment, and in mercy, and in tender compassions;[20] and I will betroth thee to Myself in faithfulness: and thou shalt know the Lord.
[21] And it shall come to pass in that day, saith the Lord, I will hearken to the heaven, and it shall hearken to the earth;[22] and the earth shall hearken to the corn, and the wine, and the oil; and they shall hearken to Jezrael.[23] And I will sow her to me on the earth; and will love her that was not loved, and will say to that which was not My people, Thou art My people; and they shall say,
Thou art the Lord my God.LXX
Jeremiah 31:18-20 I have heard the sound of
Ephraim lamenting, and saying, Thou hast chastened me and I was chastened. I as a calf was not willingly taught: turn Thou me and I shall turn, for
Thou art the Lord my God.[19] For after my captivity I repented, and after I knew I groaned for the day of shame, and shewed Thee that I bore reproach from my youth.[20] Ephraim is a beloved son, a pleasing child to me, for
because My words are in him I will surely remember him. Therefore I made haste to help him, I will surely have mercy upon him, saith the Lord.(LXX, Jeremias 38:18-20)
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* The Valley of Achor