In the Book of Galatians, believers learn that the gospel of Jesus, not the laws of Torah, justifies them, adds them to a multi-ethnic family, and equips them by the Spirit to love God and others.
When people trust in Jesus as Messiah and put their faith in Him, His life, death, and resurrection become theirs. They are new creations, free from the requirement to follow the laws of Torah.
They now join a new multi-ethnic covenant family of Jesus, thus fulfilling God's promise to Abraham. Because of Jesus and the Spirit, believers learn to love God and others.