Passage
And who so will not come vp of all the families of the earth vnto Ierusalem to worship the King the Lord of hostes, euen vpon them shall come no raine.
And who so will not come vp of all the families of the earth vnto Ierusalem to worship the King the Lord of hostes, euen vpon them shall come no raine.
Zechariah 14:15 Yet this shall be the plague of the horse, of the mule, of the camell and of the asse and of all the beasts that be in these tents as this plague.
Zechariah 14:16 But it shall come to passe that euery one that is left of all the nations, which came against Ierusalem, shall goe vp from yere to yere to worship the King the Lord of hostes, and to keepe the feast of Tabernacles.
Zechariah 14:17 And who so will not come vp of all the families of the earth vnto Ierusalem to worship the King the Lord of hostes, euen vpon them shall come no raine.
Zechariah 14:18 And if the familie of Egypt goe not vp, and come not, it shall not raine vpon them. This shall be the plague wherewith the Lord will smite all the heathen, that come not vp to keepe the feast of Tabernacles.
Zechariah 14:19 This shall be the punishment of Egypt, and the punishment of all the nations that come not vp to keepe the feast of Tabernacles.
The verse centers on "come", "families", "earth", "vnto", "ierusalem", "worship", "king", and "lord". It is saying that the verse draws attention to "come" and "families", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 16's "But it shall come to passe that..." into verse 18's "And if the familie of Egypt goe...", so "come" and "families" belong inside that flow. In Zechariah context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "come" and "families" with trust shaped by these words, not by a vague optimism outside the passage.