I get tough questions this semester, which is excellent and refreshing. I run off to find an answer or a solution, but when I figure it I can only give back a hint:
. . . if no better place,
Thank him who puts me loath to this revenge
On you who wrong me not for him who wrongd.
Here’s one of those areas where line breaks get in the way and where meter is beating sense, and also nonstandard orthography.
Thank, in other words, God for this, not me. Satan is beginning to rationalize.
Why? We can read “me not” as the end of the clause and put commas between “loath to this revenge” so the sentence would read “Thank Him who made me what I am for assailing you, who never did anything to me, sure, but it was Him who wronged.”