Earlier quoted context omitted.
Am I missing some joke or wordplay, or are you just a genuine believer who felt God warranted a mention here?
As far as I know, “you’re doing God’s work” is a relatively common - if somewhat archaic - idiom. It means roughly “I appreciate what you’re doing.”
For example: There's a fluorescent light above my desk that flickers and has been driving me crazy for years. I can't get facilities to fix it because they need a ticket that's approved by management and has an approved budget, and all their other tasks are more urgent.... so it slowly drives me mad for a year. Finally, a facilities person says "You know what... I'm not supposed to do this without management approval... but I'll just fix this real quick and it'll be our secret" ..... Me: "Oh, thank you, you're doing God's work"