Genesis 21:4

And Abraham circumcised his son Isaac being eight days old, as God had commanded him.

Genesis 21:4 · King James Version

In other versions

And Abraham circumcised his son Isaac when he was eight days old, as God had commanded him.
ASV
And when his son Isaac was eight days old, Abraham made him undergo circumcision, as God had said to him.
BBE
And Abraham circumcised his son Isaac, being eight days old, as God had commanded him.
DBY
Abraham circumcised his son, Isaac, when he was eight days old, as God had commanded him.
WEB
and Abraham circumciseth Isaac his son, `being' a son of eight days, as God hath commanded him.
YLT
And Abraham circumcised his son Isaac being eight days old, as God had commanded him.
ENG
And Abraham circumcised his son Isaac, being eight days old, as God had commanded him.
WBT
When his son Isaac was eight days old, Abraham circumcised him, as God had commanded him.
BSB

²For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.

³And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.

⁴And Abraham circumcised his son Isaac being eight days old, as God had commanded him.

⁵And Abraham was an hundred years old, when his son Isaac was born unto him.

⁶And Sarah said, God hath made me to laugh, so that all that hear will laugh with me.