Moses
Genesis 30:3ESV·traditional attribution

Then she said, “Here is my servant Bilhah; go in to her, so that she may give birth on my behalf, that even I may have children through her.”

John Calvin Reformed @genevareformer

3. Behold my maid Bilhah. Here the vanity of the female disposition appears. For Rachel is not induced to flee unto the Lord, but strives to gain a triumph by illicit arts. Therefore she hurries Jacob into a third marriage. Whence we infer, that there is no end of sinning, when once the Divine institution is treated with neglect.

Matthew Henry Presbyterian @wholebiblehenry

We have here the bad consequences of that strange marriage which Jacob made with the two sisters. Here is, I. An unhappy disagreement between him and Rachel (Gen 30:1, Gen 30:2), occasioned, not so much by her own barrenness as by her sister's fruitfulness.

Commenting on Genesis 30:1-13

John Gill Reformed Baptist @doctorgill

And she said,.... in order to pacify Jacob, and explain her meaning to him; which was, not that she thought it was in his power to make her the mother of children, but that he would think of some way or another of obtaining children for her, that might go for hers; so the Arabic version, "obtain a son for me": but, since no method...