Then Zipporah, his wife, took a sharp stone, cut off the foreskin of her son, and touched Moses' feet with it. Because of the rite of circumcision she said to Moses, “You are a husband of blood to me.” And so the Lord spared Moses' life.
Rather, the real Jew is the person who is a Jew on the inside, that is, whose heart has been circumcised, and this is the work of God's Spirit, not of the written Law. Such a person receives praise from God, not from human beings.
He was circumcised later, and his circumcision was a sign to show that because of his faith God had accepted him as righteous before he had been circumcised. And so Abraham is the spiritual father of all who believe in God and are accepted as righteous by him, even though they are not circumcised.
The Lord your God will give you and your descendants obedient hearts, so that you will love him with all your heart, and you will continue to live in that land.
In union with Christ you were circumcised, not with the circumcision that is made by human beings, but with the circumcision made by Christ, which consists of being freed from the power of this sinful self.