Genesis 21:4

4 And Abraam circumcised Isaac on the eighth day, as God commanded 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 she conceived and bore to Abraam a son in old age, at the set time according as the Lord spoke to him.
3 And Abraam called the name of his son that was born to him, whom Sarrha bore to him, Isaac.
4 And Abraam circumcised Isaac on the eighth day, as God commanded him.
5 And Abraam was a hundred years old when Isaac his son was born to him.
6 And Sarrha said, The Lord has made laughter for me, for whoever shall hear shall rejoice with me.

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