Then Abraham took his son Ishmael, and all who were born in his house, and all whom he had bought, every male among the men of his house, and he circumcised the flesh of their foreskin promptly, the very same day, just as God had instructed him.
For I know that he will instruct his sons, and his household after him, to keep to the way of the Lord, and to act with judgment and justice, so that, for the sake of Abraham, the Lord may bring about all the things that he has spoken to him."
Therefore, whoever will have loosened one of the least of these commandments, and have taught men so, shall be called the least in the kingdom of heaven. But whoever will have done and taught these, such a one shall be called great in the kingdom of heaven.
By faith, the one called Abraham obeyed, going out to the place that he was to receive as an inheritance. And he went out, not knowing where he was going.