Genesis 16:10

10 And the angel of the Lord said to her, I will surely multiply thy seed, and it shall not be numbered for multitude.

Genesis 16:10 Meaning and Commentary

Genesis 16:10

And the angel of the Lord said unto her
The same as before, who, by what follows, appears to be Jehovah himself:

I will multiply thy seed exceedingly;
not that she should have many children herself, for that she had more than this one she now went with, is not certain; but that that seed she had conceived should be exceedingly multiplied, and he should have a numerous posterity, as he had twelve princes sprung from him, the heads of Arab nations:

that it shall not be numbered for multitude;
such the Turks are at this day, supposed to be the seed of Ishmael, Hagar's son.

Genesis 16:10 In-Context

8 And the angel of the Lord said to her, Agar, Sara's maid, whence comest thou, and wither goest thou? and she said, I am fleeing from the face of my mistress Sara.
9 And the angel of the Lord said to her, Return to thy mistress, and submit thyself under her hands.
10 And the angel of the Lord said to her, I will surely multiply thy seed, and it shall not be numbered for multitude.
11 And the angel of the Lord said to her, Behold thou art with child, and shalt bear a son, and shalt call his name Ismael, for the Lord hath hearkened to thy humiliation.
12 He shall be a wild man, his hands against all, and the hands of all against him, and he shall dwell in the presence of all his brethren.

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