Magazine House style

Numbers
Spell out numerals from zero to one hundred.
If there is a combination of numbers in a sentence, and one or more of the numbers is greater than one hundred, use numbers (i.e. 1, 3, 57) for all the numerals.

Punctuation
Periods and commas always come before closing quotation marks. Except when it’s a direct scripture quotation (see below).

Scripture References
When quoting Scripture, place the period after the parentheses containing the reference.
ex: “Finally, my brother, rejoice in the Lord” (Phil. 3:1).

If the quotation ends in a question or exclamation point, place it with the text and place a period after the last parenthesis.
ex: “‘If I want him to remain until I come, ’ Jesus answered, ‘what is that to you?’” (John 21:21).

Resources:
The Chicago Manual of Style
The Little Style Guide to Great Christian Writing and Publishing by Leonard Goss and Carolyn Stanford Goss
The Christian Writer’s Manual of Style by Robert Hudson

Capitalization
Always capitalized:
God (and names referring to one supreme God, such as Abba, Jehovah, etc.)
Scripture (when referring to the Bible as a whole), when mentioning a scripture it should be lower-case
the Bible
the Church of England or the United Methodist Church (when used to refer to the formal name of a denomination)
Heaven/Hell

Do not capitalize:
Do not capitalize “he” or “him” when referring to God or Jesus.
Capitalize the word Bible when you’re talking about the Bible. Do not capitalize bible when it’s descriptive, like an adjective, referring to something like bible study.
the church (when used to refer to Christianity as an institution and/or the body of Christ). Capitalize the word church when it is used to reference a denomination that has the word church in its formal name (e.g. United Methodist Church)
The four seasons are lower-cased (winter, spring, summer, fall)

Christian terms: