Genesis 16:15

15 And Agar bore a son to Abram; and Abram called the name of his son which Agar bore to him, Ismael.

Genesis 16:15 Meaning and Commentary

Genesis 16:15

And Hagar bare Abram a son
Being returned to his house, and received by him, and reconciled to Sarai, she brought forth a son to Abram, according to the prediction of the angel:

and Abram called his son's name, which Hagar bare, Ishmael;
and this name Jarchi suggests he gave by the inspiration of the Holy Spirit that dwelt in him: but it is highly reasonable to suppose, that Hagar upon her return reported to Abram the whole of the conversation she had with the angel; wherefore Abram believing what she said, in obedience to the order and command of the angel, gave him this name.

Genesis 16:15 In-Context

13 And she called the name of the Lord God who spoke to her, Thou art God who seest me; for she said, For I have openly seen him that appeared to me.
14 Therefore she called the well, The well of him whom I have openly seen; behold it is between Cades and Barad.
15 And Agar bore a son to Abram; and Abram called the name of his son which Agar bore to him, Ismael.
16 And Abram was eighty-six years old, when Agar bore Ismael to Abram.

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