Editing Christian Books

I know standard practice now days is to use lowercase “h” for he, him, his when referring to God, but what about for “Son” (referring to Jesus), “Word” (referring to Jesus or scripture), and “Savior” “Messiah” “Truth” “Way” “Life” (referring to Jesus")?

The last ones are titles or names and, in my understanding should be capitalized (I prefer He, Him, and His capitalized too).

Can anyone who edits or has been professionally edited clarify for me?