Moses
Deuteronomy 8:11ESV·traditional attribution

“Take care lest you forget the LORD your God by not keeping his commandments and his rules and his statutes, which I command you today,

John Calvin Reformed @genevareformer

11. Beware that thou forget not Take heed to thyself — Lat. We may easily estimable the necessity of this admonition from the common corruption of human nature, which is even yet only too general and too influential; for scarcely shall we find one person in a hundred in whom satiety does not generate headiness. Moses will hereafter speak in his Song of the rebelliousness of this people, “LXX.

Matthew Henry Presbyterian @wholebiblehenry

Moses, having mentioned the great plenty they would find in the land of Canaan, finds it necessary to caution them against the abuse of that plenty, which was a sin they would be the more prone to new that they came into the vineyard of the Lord, immediately out of a barren desert. I. He directs them to the duty of a prosperous condition, Deu 8:10.

Commenting on Deuteronomy 8:10-20

John Gill Reformed Baptist @doctorgill

Lest when thou hast eaten and art full,.... Not only once and again, but continually, day after day, being indulged with great plenty: and hast built goodly houses, and dwelt therein; who for forty years had only dwelt in tents, moving from place to place in the wilderness.