en_tn_condensed/luk/21/24.md

They will fall by the edge of the sword

"They will be killed by the edge of the sword" or "Enemy soldiers will kill them"

they will be led captive into all the nations

"their enemies will capture them and take them to many other countries"

Jerusalem will be trampled by the Gentiles

Jesus speaks about what will happen to Jerusalem as if the people of other nations will walk on it and crush it down with their feet. Possible meanings are the Gentile nations will conquer Jerusalem and occupy it or the Gentile nations will destroy the city of Jerusalem.

until the times of the Gentiles are fulfilled

"until the period of the Gentiles ends"