I thought there was a standard that said capitalize pronouns for divinity if there's some ambiguity about whether it's a member of the Godhead speaking. "And the disciple whom Jesus loved lean on His [capital, must be Jesus] breast and he [not capital, must be John] said 'Lord, who is it?'" I might have read that for another organization's publications.
Here's something more official:
Looks like this style has been in use for 50 years.