Albert Barnes Commentary Hosea 4:5

"And thou shalt stumble in the day, and the prophet also shall stumble with thee in the night; and I will destroy thy mother." — Hosea 4:5 (ASV)

Therefore shalt thou fall - The two parts of the verse complete each other. “By day and by night they will fall, people and prophets together.” Their calamities will come upon them successively, day and night. They will stumble by day, when there is least fear of stumbling (John 11:9–10); and night will not by its darkness protect them. Evil will come at noon-day (Jeremiah 15:8) upon them, seeing it, but unable to repel it; as Isaiah speaks of it as an aggravation of trouble, thy land strangers devour it in thy presence (Isaiah 1:7); and the false prophets, who saw their visions in the night, will themselves be overwhelmed in the darkness, blinded by moral darkness, perishing in actual darkness.

And I will destroy thy mother - Individuals are spoken of as the children; the whole nation, as the mother. He then denounces the destruction of all, collectively and individually. They were to be cut off, root and branch. They were to lose their collective existence as a nation; and, lest private persons should flatter themselves with hope of escape, it is said to them, as if one by one, thou shalt fall.