Genesis 21:4

4 And when his son Isaac was eight days old, Abraham made him undergo circumcision, as God had said to him.

Genesis 21:4 Meaning and Commentary

Genesis 21:4

And Abraham circumcised his son Isaac, being eight days old as,
God had commanded him.
] ( Genesis 17:12 ) , and was the first that we read of that was circumcised on that day, according to the divine precept, which Abraham strictly observed; for though this was the son of the promise, and of his old age, for whom he had the most affectionate regard, yet he administered this bloody ordinance on him; nor did he defer it beyond the time, and was himself the operator, as it seems; all which shows his strict regard, and ready and cheerful obedience to the command of God.

Genesis 21:4 In-Context

2 And Sarah became with child, and gave Abraham a son when he was old, at the time named by God.

3 And Abraham gave to his son, to whom Sarah had given birth, the name Isaac.

4 And when his son Isaac was eight days old, Abraham made him undergo circumcision, as God had said to him.

5 Now Abraham was a hundred years old when the birth of Isaac took place.

6 And Sarah said, God has given me cause for laughing, and everyone who has news of it will be laughing with me.