But Zipporah circumcised her son with a flint knife. She touched his legs with the skin she had cut off and said, “My dear son, this blood will protect you.”
To be a real Jew you must obey the Law. True circumcision is something that happens deep in your heart, not something done to your body. And besides, you should want praise from God and not from humans.
Abraham let himself be circumcised to show that he had been accepted because of his faith even before he was circumcised. This makes Abraham the father of all who are acceptable to God because of their faith, even though they are not circumcised.
You and your descendants are stubborn, but the LORD will make you willing to obey him and love him with all your heart and soul, and you will enjoy a long life.