I’m pretty sure Trump is a pure Atheist with no belief in God whatsoever, not because he’s given it any amount of thought, but because he hasn’t seen anything like God with his own eyes affecting himself and he’s too egotistical. He recognizes the usefulness of wearing a US cape of christian nationalism though, so he’ll spout some random phrases he’s picked up before, whether it sounds intelligible isn’t important. Christians have been conditioned to just accept BS, like people talking in tongues, so they just accept it because he throws out acceptable phrases and it sounds like he’s endorsing their beliefs.
