The word(s) "serve" appears 100 time(s) in 96 verse(s) in Quran in Muhammad Pickthal translation.

(51) And thou wouldst have deemed them waking though they were asleep, and We caused them to turn over to the right and the left, and their dog stretching out his paws on the threshold. If thou hadst observed them closely thou hadst assuredly turned away from them in flight, and hadst been filled with awe of them.

(52) And lo! Allah is my Lord and your Lord. So serve Him. That is the right path.

(53) O my father! serve not the devil. Lo! the devil is a rebel unto the Beneficent.

(54) Lo! I, even I, am Allah, There is no Allah save Me. So serve Me and establish worship for My remembrance.

(55) And We verily sent Noah unto his folk, and he said: O my people! serve Allah. Ye have no other Allah save Him. Will ye not ward off (evil)?

(56) And we sent among them a messenger of their own, saying: serve Allah, Ye have no other Allah save Him. Will ye not ward off (evil)?

(57) And let those who cannot find a match keep chaste till Allah give them independence by His grace. And such of your slaves as seek a writing (of emancipation), write it for them if ye are aware of aught of good in them, and bestow upon them of the wealth of Allah which He hath bestowed upon you. Force not your slave-girls to whoredom that ye may seek enjoyment of the life of the world, if they would preserve their chastity. And if one force them, then (unto them), after their compulsion, lo! Allah will be Forgiving, Merciful.

(58) Allah hath promised such of you as believe and do good work that He will surely make them to succeed (the present rulers) in the earth even as He caused those who were before them to succeed (others); and that He will surely establish for them their religion which He hath approved for them, and will give them in exchange safety after their fear. They serve Me. They ascribe no thing as partner unto Me. Those who disbelieve henceforth, they are the miscreants.

(59) (Say): I (Muhammad) am commanded only to serve the Lord of this land which He hath hallowed, and unto Whom all things belong. And I am commanded to be of those who surrender (unto Him),

(60) And she said unto his sister: Trace him. So she observed him from afar, and they perceived not.