In Matthew 4:15-23, Jesus began his ministry with the Gospel message to repent for the Kingdom of God is at hand, which was a light to the Gentiles, and the Torah was how his audience knew what sin is (Romans 3:20), so repenting from our disobedience to it is a central part of the Gospel of the Kingdom/Grace, which is in accordance with Jesus being sent in fulfillment of the promise to bless us by turning us from our wickedness (Acts 3:25-26), which is the Gospel that was made known in advance to Abraham in accordance with the promise (Galatians 3:8), and which he spread to those in Haran in accordance with the promise (Genesis 12:1-5).What don't you understand about Apostle Paul declaring that God gave Abraham The Gospel Faith BY PROMISE first, before the giving of the law?
In Genesis 18:19, God knew Abraham that he would teach his children and those of his household to walk in His way by being doers of righteousness and justice that the Lord might bing to him all that He has promised. In Genesis 26:4-5, God will multiply Abraham's children as the stars in the heaven, to His children He will give all of these lands, and through his children all of the nations of the earth shall be blessed because he heard God's voice and guarded His charge, commandments, statutes, and laws. In Deuteronomy 30:16, if the children of Abraham will love God with all of their hearts by walking in His way in obedience to His commandments, statutes, and laws, then they will live and multiply and God will bless them in the land that they go to possess. So the promise was made to Abraham and brought about because he walked in God's way in obedience to His law, he taught his children and those of his household to do that in accordance with spreading the Gospel of the Kingdom/Grace, and because they did that in obedience to the Torah.
In Psalm 119:1-3, the Torah is how the children of Abraham know how to blessed by walking in God's way, and in John 8:39, Jesus said that if they were children of Abraham, then they would be doers of the same works as him, so the way that the children of Abraham are multiplied and are a blessing to the nations in accordance with inheriting the promise through faith is by turning the nations from their wickedness and by teaching them to do the same works as Abraham by walking in His way in obedience to the Torah in accordance with spreading the Gospel of the Kingdom/Grace.


