31 So Jesus said to the Jews who had believed him, “If you abide in my word, you are truly my disciples, 32 and you will know the truth, and the truth will set you free.” 33 They answered him, “We are offspring of Abraham and have never been enslaved to anyone. How is it that you say, ‘You will become free’?” – John 8:31-33 (ESV)
Paul has corporate solidarity in view in Galatians 3 when He uses “offspring” both for one person (Christ, v. 16) and for many (believers, v. 29). The apostle’s identification of Jesus as Abraham’s offspring to whom life, land, and blessing was promised (Gen. 12:1–3; 15; 17) refers to the people of God, the oneness of the seed accentuating their unity. Christ as Abraham’s one offspring to whom God made His promises is a concise way to say redemption was pledged to the one family unified in the Messiah, who is the truest expression of this people. – RC Sproul
What then shall we say? That the law is sin? By no means! Yet if it had not been for the law, I would not have known sin. For I would not have known what it is to covet if the law had not said, “You shall not covet.” 8 But sin, seizing an opportunity through the commandment, produced in me all kinds of covetousness. For apart from the law, sin lies dead. – Romans 7:7-8 (ESV)
“The Lord came from Sinai and dawned from Seir upon us; he shone forth from Mount Paran; he came from the ten thousands of holy ones, with flaming fire at his right hand. – Deuteronomy 33:2 (ESV)