Bereshis 21:3

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

Bereshis 21:3 Meaning and Commentary

Genesis 21:3

And Abraham called the name of his son that was borne unto
him, whom Sarah bare to him, Isaac.
] Which is the name he was directed to give him, ( Genesis 17:19 ) ; and he remembers the order, and is obedient to it; the reason of which name, which signifies laughter, was on account of his laughing for joy at the promise made him, as well as there might be afterwards a further reason for it, from Sarah's laughing through distrust; and it might presignify the joy and laughter that would be expressed by others at his birth; and perhaps also that he would be the object of the laughter and derision of his brother; such a number of events agreeing with his name.

Bereshis 21:3 In-Context

1 1 And Hashem visited Sarah as He had said, and Hashem did unto Sarah just as He had spoken.

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.