Moses
Deuteronomy 28:15ESV·traditional attribution

“But if you will not obey the voice of the LORD your God or be careful to do all his commandments and his statutes that I command you today, then all these curses shall come upon you and overtake you.

John Calvin Reformed @genevareformer

15. But it shall come to pass, if thou wilt not hearken. This list of curses is longer than the previous one which was proclaimed from Mount Sinai, undoubtedly because the Spirit of God foresaw that the sluggishness of the people had need of sharper stimulants.

Matthew Henry Presbyterian @wholebiblehenry

Having viewed the bright side of the cloud, which is towards the obedient, we have now presented to us the dark side, which is towards the disobedient. If we do not keep God's commandments, we not only come short of the blessing promised, but we lay ourselves under the curse, which is as comprehensive of all misery as the blessing is of all happiness. Observe, I.

Commenting on Deuteronomy 28:15-44

John Gill Reformed Baptist @doctorgill

Cursed shalt thou be in the city, and cursed shalt thou be in the field. In Deu 28:16 the curses are delivered out in form, as the reverse of the blessings in Deu 28:3; and by observing what the blessings mean, the sense of the curses may easily be understood, the one being directly opposite to the other. See Gill on Deu 28:3. .