MVA said:
I have no doubt that God did not destroy Zoar at the time He destroyed Sodom and Gomorrah. Lot wanted to escape to a city close by. But soon afterwards Lot went into the mountains, and you know the story there.
So after Lot left Zoar would it not be possible for God to destroy it?
And wasn't Jericho repopulated after it was destroyed?
A. All things are possible with God. But that does not prove God did so. God said He would spare the city. Nor do the Scriptures make any reference to its destruction, and that seems unusual when such a point was made of the other cities, and it still was in the vicinity of Abraham and Lot.
B. The ancient historians say it remained to this day. They say it was spared. The other Bible texts mention it as existing later on. On the other hand Josephus describes the bordering area of Sodom which was even then loathsome, and had Zoar been obliterated, it too would have been so described.
C. Jericho, Jerusalem, and many other cities were re-inhabited. However, in those cases destruction was generally due to a foreign party invading. Either the defenders won out and re-built or the invaders took over and inhabited it. There would be no invaders here. Nor would there be any survivors. Who would have an interest in coming to Zoar to rebuild and inhabit?
D. In addition to C above you have another factor, the blasted condition of those cities which were destroyed. Why would an uninvolved party come to a wasteland with no natural resources, under the blight of total destruction, to rebuild when they could go elsewhere?
E. Add to C and D above that anyone coming there to rebuild would be restoring and taking on the name of a city that was so cursed by God as to be totally destroyed. That would be quite a risk, and for what gain?
The city was said to be there since that time by historians, was said to be spared, and was mentioned in the Bible after the fact. God said He would spare it. It certainly seems that He did.