John Gill Commentary Revelation 9:12

"The first Woe is past: behold, there come yet two Woes hereafter." — Revelation 9:12 (ASV)

One woe is past
One of the three woe trumpets, the first of them; that is, in the vision which John had of it, not the thing itself designed by it:

[and] behold there come two woes more hereafter ;
under the blowing of the sixth and seventh trumpets.