[Bodleian_Girl]

He can be godless and reject Christ in favor of the dark side and still write a song.

He actively chose to put sexual and occult if imagery in his BlackStar video near the end of his life. So that shows what he believed in.

[Mariner]

Tony Visconti, who co-produced the album says Blackstar is a song about the worst cult in the world, ISIS.

I'd say Bowie produced a scathing critique of them.

But I'm sure you've got an angel telling you to judge.