Genesis 17:11-21

11 And ye shall be circumcised in the flesh of your foreskin, and it shall be for a sign of a covenant between me and you.
12 And the child of eight days shall be circumcised by you, every male throughout your generations, and born in the house and he that is bought with money, of every son of a stranger, who is not of thy seed.
13 He that is born in thy house, and he that is bought with money shall be surely circumcised, and my covenant shall be on your flesh for an everlasting covenant.
14 And the uncircumcised male, who shall not be circumcised in the flesh of his foreskin on the eighth day, that soul shall be utterly destroyed from its family, for he has broken my covenant.
15 And God said to Abraam, Sara thy wife—her name shall not be called Sara, Sarrha shall be her name.
16 And I will bless her, and give thee a son of her, and I will bless him, and he shall become nations, and kings of nations shall be of him.
17 And Abraam fell upon his face, and laughed; and spoke in his heart, saying, Shall there be a child to one who is a hundred years old, and shall Sarrha who is ninety years old, bear?
18 And Abraam said to God, Let this Ismael live before thee.
19 And God said to Abraam, Yea, behold, Sarrha thy wife shall bear thee a son, and thou shalt call his name Isaac; and I will establish my covenant with him, for an everlasting covenant, to be a God to him and to his seed after him.
20 And concerning Ismael, behold, I have heard thee, and, behold, I have blessed him, and will increase him and multiply him exceedingly; twelve nations shall he beget, and I will make him a great nation.
21 But I will establish my covenant with Isaac, whom Sarrha shall bear to thee at this time, in the next year.

Genesis 17:11-21 Meaning and Commentary

INTRODUCTION TO GENESIS 17

This chapter treats of a covenant made with Abram, sometimes called the covenant of circumcision, the time when God appeared to him, and promised to make it, and did, Ge 17:1-3; the particulars of it, both with respect to himself, whose name was now changed, and to his posterity, Ge 17:4-8; the token of it, circumcision, the time of its performance, and the persons obliged to it, Ge 17:9-14; the change of Sarai's name, and a promise made that she should have a son, to the great surprise of Abraham, Ge 17:15-17; a prayer of his for Ishmael, and the answer to it, with a confirmation of Sarah's having a son, whose name should be called Isaac, and the establishment of the covenant with him, Ge 17:18-22; and the chapter is closed with an account of the circumcision of Abraham, and all his family of the male sort, agreeably to the command of God, Ge 17:23-27.

The Brenton translation of the Septuagint is in the public domain.