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.