BELOW: Donna is careful to avoid taking the Lord's name in vain: Donna (the wife of Allen and mother of twins Ben and Billy) is the most religious character in the group of zombie apocalypse survivors that Rick Grimes joins up with. In this panel, notice how she carefully avoids breaking the 3rd Commandment (or 4th, depending on the numbering system used): "Thou shalt not take the name of the Lord thy God in vain." While most people around her would use the expression "My God", Donna says "My Word." This a subtle hint about her character, and contrasts her with many of her fellow survivors who routinely use profane and vulgar language.
Donna: My Word... That's the best news I've heard all month. Shane, darling... come with me... These two have some catching up to do.
Source: The Walking Dead #3 (Dec. 2003): "Days Gone Bye, Part 3", pg. 3, panel 4. Written by Robert Kirkman. Art by Tony Moore. See also: avoiding taking God's name in vain; Christian (denomination unknown); Donna