Genesis 21:2-5 For Sarah conceived, and gave birth to Abraham a son in his old age, at the set time of which God had spoken to him.

CKJV_Strongs⁽ⁱ⁾

2 H8283 For Sarah H2029 conceived, H3205 and gave birth to H85 Abraham H1121 a son H2208 in his old age, H4150 at the set time H430 of which God H1696 had spoken to him.

3 H85 And Abraham H7121 called H8034 the name H1121 of his son H3205 that was born H8283 to him, whom Sarah H3205 gave birth H3327 to him, Isaac.

4 H85 And Abraham H4135 circumcised H1121 his son H3327 Isaac H8083 being eight H3117 days H1121 old, H430 as God H6680 had commanded him.

5 H85 And Abraham H3967 was an hundred H8141 years H1121 old, H1121 when his son H3327 Isaac H3205 was born to him.