Zechariah 14:19

14:19 This will be the punishment of Egypt and of all nations that do not go up to celebrate the Feast of Tabernacles.

Zechariah 14:18

14:18 If the Egyptians will not do so, they will get no rain – instead there will be the kind of plague which the Lord inflicts on any nations that do not go up to celebrate the Feast of Tabernacles.