Rashi on Zechariah
Ho, Ho! “Ho” is only an expression of proclamation and an announcement of assembly. And so did Jonathan render it: Announce to the scattered ones. אַכְלוּ means announce, as in (II Sam. 22: 14): “The Lord thundered from heaven,” which Jonathan renders: אַכְלוּ מִן שְׁמַיַּא
Rashi on Zechariah
Flee from the land of the north The exiles of My people, [flee] from within Babylon and Assyria.