Boychick said:
B'H
Shalom,
The picture becomes more clear. So the story goes like this; G-d sends a Manifestation of himself

confused: ) in the form of this jesus, who dies on a cross to pay for the sins of the world?
If so, does his death cover sins from past, present and future, in effect, becoming a super sacrafice?
Yes, He, Jesus, is our sabbath and rest from our own works of righteousness - the law fulfilled and made complete and Living as God's expression of love to mankind.
The Jewish people and the Church are brothers - Ephraim (Israel) finally found and returned from exile and Judah, the two houses of Israel.
Pslams 68:19 Praise be to the Lord, to God our Saviour, who daily bears our burdens. Selah
Isa 64:6 But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away.
Lu 6:5 And he said unto them, That the Son of man is Lord also of the sabbath.
Mt.11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
29 Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls.
30 For my yoke is easy, and my burden is light.
Jer 31:31 "Behold, the days are coming, says the LORD, when I will make a new covenant with the house of Israel and with the house of Judah-- 32 not according to the covenant that I made with their fathers in the day that I took them by the hand to lead them out of the land of Egypt, My covenant which they broke, though I was a husband to them, says the LORD. 33 But this is the covenant that I will make with the house of Israel after those days, says the LORD: I will put My law in their minds, and write it on their hearts; and I will be their God, and they shall be My people.
Hebrews 8:6 But now hath he obtained a more excellent ministry, by how much also he is the mediator of a better covenant, which was established upon better promises. 7 For if that first covenant had been faultless, then should no place have been sought for the second. 8 For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah:
Matthew 15:24 But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
Acts 13:23 Of this mans seed hath God according to his promise raised unto Israel a Saviour, Jesus:
Isa 46:3 Hearken unto me, O house of Jacob, and all the remnant of the house of Israel, which are borne by me from the belly, which are carried from the womb:
Isa 37:31 And the remnant that is escaped of the house of Judah shall again take root downward, and bear fruit upward: