Joel 3:21

21. cleanse ... blood ... not cleansed--I will purge away from Judah the extreme guilt (represented by "blood," the shedding of which was the climax of her sin, Is 1:15) which was for long not purged away, but visited with judgments (Is 4:4). Messiah saves from guilt, in order to save from punishment (Mt 1:21).

Robert Jamieson, A. R. Fausset & David Brown, 1871 · public domain

Verse 21 For I will cleanse their blood - נקיתי nikkeythi, I will avenge the slaughter and martyrdom of my people, which I have not yet avenged. Persecuting nations and persecuting Churches shall all come, sooner or later, under the stroke of vindictive justice. For the Lord dwelleth in Zion - He shall be the life, soul, spirit, and defense of his Church for ever. This prophet, who has many things similar to Ezekiel, ends his prophecy nearly in the same way: Ezekiel says of the glory of the Church, יהוה שמה Yehovah shammah, The Lord Is There. Joel says, יהוה שכן בציון Yehovah shochen betsiyon, The Lord Dwelleth in Zion. Both point out the continued indwelling of Christ among his people. Verse 1 For, behold, in those days - According to the preceding prophecy, these days should refer to Gospel times, or to such as should immediately precede them. But this is a part of the prophecy which is difficult to be understood. All interpreters are at variance upon it; some applying its principal parts to Cambyses; his unfortunate expedition to Egypt; the destruction of fifty thousand of his troops (by the moving pillars of sand) whom he had sent across the desert to plunder the rich temple of Jupiter Ammon; his return to Judea, and dying of a wound which he received from his own sword, in mounting his horse, which happened at Ecbatane, at the foot of Mount Carmel. On which his army, composed of different nations, seeing themselves without a head, fell out, and fought against each other, till the whole were destroyed. And this is supposed to be what Ezekiel means by Gog and Magog, and the destruction of the former. See Ezekiel 38 and 39. Others apply this to the victories gained by the Maccabees, and to the destruction brought upon the enemies of their country; while several consider the whole as a figurative prediction of the success of the Gospel among the nations of the earth. It may refer to those times in which the Jews shall be brought in with the fullness of the Gentiles, and be re-established in their own land. Or there may be portions in this prophecy that refer to all the events; and to others that have not fallen yet within the range of human conjecture, and will be only known when the time of fulfillment shall take place. In this painful uncertainty, rendered still more so by the discordant opinions of many wise and learned men, it appears to be my province, as I have nothing in the form of a new conjecture to offer, to confine myself to an explanation of the phraseology of the chapter; and then leave the reader to apply it as may seem best to his own judgment. I shall bring again the captivity of Judah and Jerusalem - This may refer to the return from the Babylonish captivity; extending also to the restoration of Israel, or the ten tribes.

Adam Clarke, 1831 · public domain