Bereshis 21:4

4 And Avraham circumcised bno Yitzchak at age shemonat yamim, as Elohim had commanded him.

Bereshis 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.

Bereshis 21:4 In-Context

2 For Sarah conceived, and bore Avraham ben in his old age, at the mo’ed (set time) of which Elohim had given promise unto him.

3 And Avraham called the shem of bno that was born unto him, whom Sarah bore to him, Yitzchak.

4 And Avraham circumcised bno Yitzchak at age shemonat yamim, as Elohim had commanded him.

5 And Avraham was a hundred years old, when bno Yitzchak was born unto him.

6 And she said, Elohim hath brought me tzechok (laughter), so that all that hear yitzchak (will laugh) with me.