I will turn your feasts into mourning - See on Amos 8:3; (note).
A bitter day - A time of grievous calamity.
I will turn your feasts into mourning - He recurs to the sentence which he had pronounced Amos 8:3, before he described the avarice and oppression which brought it down. Hosea too had foretold, “I will cause all her mirth to cease, her feast-days, etc” Hosea 2:11. So Jeremiah describes, “the joy of our heart is ceased; our dance is turned into mourning” Lamentations 5:15. The Book of Tobit bears witness how these sayings of Amos lived in the hearts of the captive Israelites. The word of God seems oftentimes to fail, yet it finds those who are His. “I remembered,” he said, “that prophecy of Amos, your feasts shall be turned into mourning” (Joel 1:8, Joel 1:13, pp. 107,109), was wearing to the frame) “and baldness upon every head.” The mourning of the Jews was no half-mourning, no painless change of one color of becoming dress for another. For the time, they were dead to the world or to enjoyment. As the clothing was coarse, uncomely, distressing, so they laid aside every ornament, the ornament of their hair also (as English widows used, on the same principle, to cover it). They shore it off; each sex, what was the pride of their sex; the men, their beards; the women, their long hair. The strong words, “baldness, is balded Jeremiah 16:6, shear Micah 1:16; Jeremiah 7:29, hew off, enlarge thy baldness”, are used to show the completeness of this expression of sorrow. None exempted themselves in the universal sorrow; “on every head” came up “baldness.”
And I will make it - (probably, the whole state and condition of things, everything, as we use our “it”) as the mourning of an only son As, when God delivered Israel from Egypt, “there was not,” among the Egyptians: “a house where there was not one dead Exodus 12:30, and one universal cry arose from end to end of the land, so now too in apostate Israel. The whole mourning should be the one most grievous mourning of parents, over the one child in whom they themselves seemed anew to live.
And the end thereof as a bitter day - Most griefs have a rest or pause, or wear themselves out. “The end” of this should be like the beginning, nay, one concentrated grief, a whole day of bitter grief summed up in its close. It was to be no passing trouble, but one which should end in bitterness, an unending sorrow and destruction; image of the undying death in hell.