And Abraham took Ishmael, his son, and all whose birth had taken place in his house, and all his servants whom he had made his for a price, every male of his house, and on that very day he gave them circumcision in the flesh of their private parts as God had said to him.
For I have made him mine so that he may give orders to his children and those of his line after him, to keep the ways of the Lord, to do what is good and right: so that the Lord may do to Abraham as he has said.
Whoever then goes against the smallest of these laws, teaching men to do the same, will be named least in the kingdom of heaven; but he who keeps the laws, teaching others to keep them, will be named great in the kingdom of heaven.
For this cause, my dear brothers, be strong in purpose and unmoved, ever giving yourselves to the work of the Lord, because you are certain that your work is not without effect in the Lord.
By faith Abraham did as God said when he was ordered to go out into a place which was to be given to him as a heritage, and went out without knowledge of where he was going.