Summons to Penitential Prayer for the Removal of the Judgment - Joel 2:1-17 This section does not contain a fresh or second address of the prophet, but simply forms the second part of his sermon of repentance, in which he repeats with still greater emphasis the command already hinted at in Joe 1:14-15, that there should be a meeting of the congregation for humiliation and prayer, and assigns the reason in a comprehensive picture of the approach of Jehovah's great and terrible judgment-day (Joe 2:1-11), coupled with the cheering assurance that the Lord will still take compassion upon His people, according to His great grace, if they will return to Him with all their heart (Joe 2:12-14); and then closes with another summons to the whole congregation to assemble for this purpose in the house of the Lord, and with instructions how the priests are to pray to the Lord (Joe 2:15-17).