Burdens of wheat— Houbigant's reading is, A pledge, or interest for wheat: "You exact a large and exorbitant interest or price for the necessaries of life."
Related Commentaries of Amos 5:11
Amos 5:11
11 Forasmuch therefore as your treading is upon the poor, and ye take from him burdens of wheat: ye have built houses of hewn stone, but ye shall not dwell in them; ye have planted pleasantb vineyards, but ye shall not drink wine of them.