GENERALLY, the Lord will ONLY COMFORT His ERRING people
AFTER their MOURNFUL REPENTANCE as was the case with the Corinthian Church (I Corinthians 5:1-2 cf.II Corinthians 7:8-12)
SPECIFICALLY, the Lord refers to those that MOURN (Matthew 5:4)
as being REPENTANT ISRAEL for having REJECTED and CRUCIFIED their MESSIAH (Acts 3:12-21 cf.Zechariah 12:8-14)
This FUTURE GREAT MOURNING of Israel for the DEATH of
their MESSIAH is likened to their PAST MOURNING for the DEATH of KING JOSIAH (Zechariah 12:11 cf.II Chronicles 35:25)
Just as KING JOSIAH was used of the Lord in the PAST to
PURGE Israel of IDOLATRY (I Kings 13:1-2 cf. II Kings 13:19-20), so will MESSIAH FOREVER PURGE Israel of IDOLATRY (Zechariah 13:1-2)
Under the LAW, Israel was APPOINTED a DAY to AFFLICT their
SOULS (Isaiah 58:5
cf. Leviticus 16:29)
"ONCE A YEAR" in ATONEMENT "for ALL their SINS" (Leviticus 16:34)