Aquinas's Divine Simpleness Is Not Composed

Aquinas in the first part of the Sumotheologiae is not focusing on the incarnation. And so a lot of the things that he says there are meant to apply in abstraction from the incarnation. For example, if Aquinas says that God is not bodily, that's consistent with what he will say around 2000 pages later about Christ and the incarnation. But Christ is not composite on account of being divine. All the multiplicity or compositeness found in him is there not because of his divinity, but because of his humanity. Although he is not simple, his divine simplicity is not compromised.