Fast. Reverting to the original question (see ch. 7:3, 5), God declares that these fasts commemorating earlier calamities would be changed into joyful occasions. The fasts of the “fourth” and “fifth” months (Tammuz and Ab) doubtless commemorated the capture and destruction of Jerusalem by the Babylonians (see 2 Kings 25:1-9; Jer. 52:12-16); that of the “seventh” month (Tishri), perhaps the murder of Gedaliah and the flight into Egypt (see 2 Kings 25:22-26; Jer. 41:1, 2; cf. Zech. 7:5); and that of the “tenth” month (Tebeth) probably the time when Nebuchadnezzar began the siege of Jerusalem (see 2 Kings 25:1, 2; Jer. 52:4).