Twice this week, in academic works, I came across the "idea" that omnipotence implies omniscience. I don't remember the first place I encountered it (I'm trying to remember, and if I do I'll add it to my question), but it was mentioned in passing so I just shrugged it off. But I just came across it again, in Prospects for a Sound Stage 3 of Cosmological Arguments by Jerome Gellman:
I conclude that Gale and Pruss's argument, in addition to being promising for stage(1), is also potentiating for showing that the necessary being who created the world is essentially omnipotent (given stage 2). (According to the view that omnipotence entails omniscience, we can conclude that the necessary being is essentially omniscient as well.) If I am right, Gale and Pruss's argument has advanced the cause of optimal cosmological arguments in an important way.
I'm assuming Gellman wouldn't include this parenthetical remark unless there were people who actually do hold this view and argue that omnipotence entails omniscience. So... who does argue for this and how?