Amos 5:25 - Matthew Poole's English Annotations on the Holy Bible

Their fathers and they, though at so great distance of time, are one people, and so the prophet considers them in this place. Have ye offered? did you not frequently omit to offer, and yet were not reproved or plagued for the omission, when your frequent removes, and many other difficulties, made it unpracticable? so little is sacrifice with your God! and yet, when you did offer, was it to me only? or did you not sacrifice to idols and false gods, and provoked me? Will-worship and idolatry have been hereditary diseases in your generations; and it is well known, too, that these idolaters fell in the wilderness, and are made admonitions to you. Sacrifices of beasts slain, as the word properly speaks. Offerings: minchah, in general, is any gift or present made, but particularly here it is a gift or present of fine flour, oil, and frankincense unto God with the sacrifice. In the wilderness forty years: it was a broken number of years in exact account, that is, thirty-eight years and eleven months; but, as is common in such cases, the full and round number is taken and so the account runs here, and in Acts 7:42, forty years. O house of Israel; you of the ten tribes.