Moses
Genesis 30:22BSB·traditional attribution

Then God remembered Rachel. He listened to her and opened her womb,

John Calvin Reformed @genevareformer

22. And God remembered Rachel. Since with God nothing is either before or after, but all things are present, he is subject to no forgetfulness, so that, in the lapse of time, he should need to be reminded of what is past.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. Leah fruitful again, after she had, for some time, left off bearing. Jacob, it should seem, associated more with Rachel than with Leah. The law of Moses supposes it a common case that, if a man had two wives, one would be beloved and the other hated, Deu 21:15.

Commenting on Genesis 30:14-24

John Gill Reformed Baptist @doctorgill

And it came to pass, when Rachel had borne Joseph,.... At which time his fourteen years of servitude were ended; for Jacob was in Laban's house twenty years, fourteen were spent in serving for his wives, and the other six for his cattle, which begun from this time, as the context clearly shows; see Gen 31:41; so that, as the Jewish writers (l) truly observe...