Acts 7:8

Overview - Acts 7
1	Stephen, permitted to answer to the accusation of blasphemy,
2	shows that Abraham worshipped God rightly, and how God chose the fathers,
20	before Moses was born, and before the tabernacle and temple were built;
37	that Moses himself witnessed of Christ;
44	and that all outward ceremonies were ordained, according to the heavenly pattern, to last but for a time;
51	reprehending their rebellion, and murdering of Christ, the Just One, whom the prophets foretold should come into the world.
54	Whereupon they stone him to death, who commends his soul to Jesus, and humbly prays for them.

Acts 7:8  (King James Version)
And he gave him the covenant of circumcision: and so Abraham begat Isaac, and circumcised him the eighth day; and Isaac begat Jacob; and Jacob begat the twelve patriarchs.