So it means you really do not know the Old testament context but thats ok. I didn't know it either and it's because of speaking about it here that made me dig deeper and study it more. What Jesus was offering in Matthew is not a replacement Sabbath.
That's right. He was giving to us a new salvation of adoption into God's own family as sons and daughters of which He is the firstfruit of that recreation of humanity.
It is a emotional and spiritual rest from cares and burdens.
That just assumption
If this is something new, Jesus is offering, that means no one in the Old Testament ever had this rest.
Right on as Hebrews tells us:Heb 4:8-10 For if Joshua had given them rest, God would not have spoken later about another day. 9 There remains, then, a Sabbath rest for the people of God; NIV
Jesus isn't giving something never before given. David and many others would have experienced this rest, through his faith in God.
Totally unfounded in Scripture
A question to think about. Was this rest a replacement to the Sabbath? When they eventually get the rest temporarily did they not still keep the Sabbath?
It wasn't. God rest is when he comes to His temple:
1 Chron 28:2 King David rose to his feet and said: "Listen to me, my brothers and my people. I had it in my heart to build a house as a place of rest for the ark of the covenant of the Lord , for the footstool of our God, and I made plans to build it.
Ps 132:7-9 "Let us go to his dwelling place; let us worship at his footstool arise, O Lord , and come to your resting place, you and the ark of your might. May your priests be clothed with righteousness; may your saints sing for joy."
[FONT="]Isa 66:1-2 [/FONT][FONT="]This is what the Lord says: "Heaven is my throne, and the earth is my footstool. Where is the house you will build for me? Where will my resting place be? Has not my hand made all these things, and so they came into being?" declares the Lord [/FONT]
Hebrews 4 actually endorses the Sabbath rest by giving example of God's Sabbath keeping and saying that those who enter into rest follow his example of doing it. Some say it means you have to rest from spiritual works of earning Salvation. However, that is not how God rested. God purposefully chose to create the world in 6 days and rest on the 7th to show an example, and here in Hebrews it is saying to enter into rest the same way God did from his.
On day six Gods work had been completed and so on day seven He rested. The resting place of a god was a temple. The Hebrew word translated rest has the meaning of completion of an activity rather than our usage implying inactivity. When God rested on the seventh day that was not primarily about doing nothing but about God having completed His work, and that earth, under the vice regency of humanity, was now all set up and running in a partnership with its Creator. This is what gives our human activities such as architecture, invention, governance, husbandry, sport, family, parenting, construction, and all the great variety of human activity their true meaning. We are joining with the Creator in the ongoing operation of our world.
Also
Here are some scriptures where rest means to enjoy and live in Gods provision.
Deut 3:19-20 However, your wives, your children and your livestock (I know you have much livestock) may stay in the towns I have given you, until the Lord gives rest to your brothers as he has to you, and they too have taken over the land that the Lord your God is giving them, across the Jordan.
Ps 132:13-14 For the Lord has chosen Zion, he has desired it for his dwelling: "This is my resting place for ever and ever; here I will sit enthroned, for I have desired it
In this Psalm we see the concepts of a throne, temple and rest clearly presented.
For those who say the Sabbath is now "Today" meaning everyday, they base it on Hebrews 4:7 which is quoting from what David id in Psalms 95. That is why is says, ".. saying in David" and "..as it is said". This is where the quote is taken from
Psa 95:7 For he is our God; and we are the people of his pasture, and the sheep of his hand. To day if ye will hear his voice,
Psa 95:8 Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness:
Psa 95:9 When your fathers tempted me, proved me, and saw my work.
Psa 95:10 Forty years long was I grieved with this generation, and said, It is a people that do err in their heart, and they have not known my ways:
Psa 95:11 Unto whom I sware in my wrath that they should not enter into my rest.
So here in the OT, David is speaking of today. Is this a replacement Sabbath? Of course not, it is simply a call to accept the voice of but it is linked directly to the OT context of Hebrews 4 which is the rest given to them to enter Canaan.
The rest there was God's provision (land in that case) Now it's Jesus and His salvation.
Jesus was subject to the law or he could not have fulfilled it. Very profound statement. Let's see why Jesus was subject to the law.
Agreed. Then having fulfilled all righteousness he became our sacrifice and gave us the new and better covenant.
The carnal mind is not subject to the law of God and can never be. Jesus was spiritually minded and therefore was subject to the law. He was able to fulfill the law because he loved God.
More Greek than biblical
What you need to understand about a covenant is that it is an agreement between two sides. If I have an agreement that i would pay you $15,000 to build my house and you breach the contract it does not mean I still do not want my house built. Hebrews 7 - 10 speaks at length about the old covenant. It is the only NT book which deals in detail with the Old Covenant and what had passed away. The section of the law which is mentioned mostly is the law concerning ordinances and ceremonies or the "handwriting of ordinances". However, in the new agreement Jesus still wants his Holy law to be at the center.
You confuse covenant (an unchanging commitment) with contract (mutual obligations, which if not fulfilled negate the contract
You did ask about Galatians. The fact is that the law was never for justification. The jews at that time, gave a purpose to the law for which it was never intended. The law was never for salvation, or for justification. The law was to give a knowledge of sin. If people looks to the law to justify them, then the grace of God has no effect on them.
That's a bit confused too. Its what we do knowing we have sinned that is our problem. The real remedy is in the New Covenant
But as the previous scripture shows, if you have love for God you will fulfill his law as Jesus did because love is the fulfilling of the law.
That's what all the law pointed to. But love is not the law. Nor can the law enable us to approach God with confidence. This is why the new covenant is for a new heart.
Col 2:13-14 He forgave us all our sins, 14 having canceled the written code, with its regulations, that was against us and that stood opposed to us; he took it away, nailing it to the cross. NIV
That's pretty clear. The law itself was nailed to the cross - dead cancelled, no longer operative or relevant.