and this proves...?

g

Charles Darwin was not an atheist. And he also knew that his publication would be controversial in his Anglican community, to say the least.

So what?

It's not remarkable that a scientist at that time would refer to god as not to do so would result in ridicule/excommunication and isolation from his peers.

He was afraid of a backlash, and especially of upsetting his wife who was deeply religious. (A reason he hesitated publishing in the first place, he understood the logical conclusions to be drawn from his work.)

I didn’t know that. I read somewhere that, when asked if there was a God, Darwin replied that he didn’t know and that he did not feel qualified to give an opinion.