Moses
Deuteronomy 11:14ESV·traditional attribution

he will give the rain for your land in its season, the early rain and the later rain, that you may gather in your grain and your wine and your oil.

Matthew Henry Presbyterian @wholebiblehenry

Still Moses urges the same subject, as loth to conclude till he had gained his point. "If thou wilt enter into life, if thou wilt enter into Canaan, a type of that life, and find it a good land indeed to thee, keep the commandments: Keep all the commandments which I command you this day; love God, and serve him with all your heart." I.

Commenting on Deuteronomy 11:8-17

John Gill Reformed Baptist @doctorgill

And then the Lord's wrath be kindled against you,.... For their idolatry, nothing being more provoking to him than that, it being contrary to his nature and being, as well as to his will, and to his honour and glory: and he shut up the heaven, that there be no rain; the treasures and storehouses of it there, or the windows of it, the clouds...

Jamieson-Fausset-Brown Reformed @jfbcommentary

the first rain and the latter rain--The early rain commenced in autumn, that is, chiefly during the months of September and October, while the latter rain fell in the spring of the year, that is, during the months of March and April.