Take the WHOLE quote including the last phrase: "for thou, even thou only, knowest the hearts of all the children of men;" I interpret that as meaning that God is the only one who knows the hearts of ALL the children.... That means, to me that God is the one who can read everyone's mind & everyone's heart. Obviously the devil can read the hearts & mind of SOME people. That's unfortunate, of course, but if the devil had no power at all, then we wouldn't be in this mess in the 1st place!

Archangels can also read the hearts & minds of SOME people & it is certainly OK to request their help. I think Trump wrote this in a brilliant way.to not exclude people of other faiths. He said that we pray comma and do thou oh archangel. That means that we are praying (to God I presume) and that we request a mission of Michael. It is not a prayer to Michael but a request & yes, Michael can read our thoughts if God so allows it