Then David sent messengers to Saul’s son Ish-Bosheth, saying, “Give me my wife Michal. She was promised to me, and I killed a hundred Philistines to get her.”
A foreigner who lives with you may share in the Lord’s Passover if all the males in his house become circumcised. Then, since he will be like a citizen of Israel, he may share in the meal. But a man who is not circumcised may not eat the Passover meal.
But Zipporah took a flint knife and circumcised her son. Taking the skin, she touched Moses’ feet with it and said to him, “You are a bridegroom of blood to me.”
God made an agreement with Abraham, the sign of which was circumcision. And so when Abraham had his son Isaac, Abraham circumcised him when he was eight days old. Isaac also circumcised his son Jacob, and Jacob did the same for his sons, the twelve ancestors of our people.
Abraham was circumcised to show that he was right with God through faith before he was circumcised. So Abraham is the father of all those who believe but are not circumcised; he is the father of all believers who are accepted as being right with God.