And Abraham took Ishmael his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham's house; and circumcised the flesh of their foreskins in the same day, as God had said unto him.
For I know him, that he will command his children and his household after him, and they shall keep the way of the LORD, to do righteousness and justice; that the LORD may bring upon Abraham that which he has spoken of him.
Whosoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whosoever shall do and teach them, the same shall be called great in the kingdom of heaven.
Therefore, my beloved brethren, be steadfast, unmovable, always abounding in the work of the Lord, since you know that your labor is not in vain in the Lord.
By faith Abraham, when he was called to go out into a place which he should later receive for an inheritance, obeyed; and he went out, not knowing where he went.