Moses
Genesis 30:11ESV·traditional attribution

And Leah said, “Good fortune has come!” so she called his name Gad.

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 Reuben went in the days of wheat harvest,.... Leah's eldest son, who is supposed to be at this time about four or five years of age (e), who went out from the tent to the field, to play there perhaps; and this was at the time of wheat harvest, in the month Sivan, as the Targum of Jonathan, which answers to part of our...

Geneva Bible Notes Reformed @genevanotes

And Leah said, A troop cometh: and she called his name Gad. (d) That is, God increases me with a multitude of children for so Jacob explains this name Gad .