In other words, that the person saying "I'll pray for you" is also saying under their breath, "...you moral retard."
It puzzles me, as I have always felt grateful if a person said they'd pray for me. Even a person of a different religion: I think, "Well, I don't believe as you do, but I know you mean well."
Am I wrong?
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NO, you are NOT wrong.
You are as right as rain.
Pray for me! I’ll pray for you!