The word(s) "serves" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And among men is he who serves Allah (standing) on the verge, so that if good befalls him he is satisfied therewith, but if a trial afflict him he turns back headlong; he loses this world as well as the hereafter; that is a manifest loss.

(2) We know indeed what the earth diminishes of them, and with Us is a writing that preserves.