The word(s) "serve" appears 118 time(s) in 107 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) Certainly they disbelieve who say: Surely Allah, He is the Messiah, son of Marium; and the Messiah said: O Children of Israel! serve Allah, my Lord and your Lord. Surely whoever associates (others) with Allah, then Allah has forbidden to him the garden, and his abode is the fire; and there shall be no helpers for the unjust.

(12) Say: Do you serve besides Allah that which does not control for you any harm, or any profit? And Allah-- He is the Hearing, the Knowing.

(13) I did not say to them aught save what Thou didst enjoin me with: That serve Allah, my Lord and your Lord, and I was a witness of them so long as I was among them, but when Thou didst cause me to die, Thou wert the watcher over them, and Thou art witness of all things.

(14) Say: I am forbidden to serve those whom you call upon besides Allah. Say: I do not follow your low desires. for then indeed I should have gone astray and I should not be of those who go aright.

(15) That is Allah, your Lord, there is no god but He; the Creator of all things, therefore serve Him, and He has charge of all things.

(16) Certainly We sent Nuh to his people, so he said: O my people! serve Allah, you have no god other than Him; surely I fear for you the chastisement of a grievous day.

(17) And to Ad (We sent) their brother Hud. He said: O my people! serve Allah, you have no god other than Him; will you not then guard (against evil)?

(18) They said: Have you come to us that we may serve Allah alone and give up what our fathers used to serve? Then bring to us what you threaten us with, if you are of the truthful ones.

(19) And to Samood (We sent) their brother Salih. He said: O my people! serve Allah, you have no god other than Him; clear proof indeed has come to you from your Lord; this is (as) Allah's she-camel for you-- a sign, therefore leave her alone to pasture on Allah's earth, and do not touch her with any harm, otherwise painful chastisement will overtake you.

(20) And to Madyan (We sent) their brother Shu'aib. He said: O my people! serve Allah, you have no god other than Him; clear proof indeed has come to you from your Lord, therefore give full measure and weight and do not diminish to men their things, and do not make mischief in the land after its reform; this is better for you if you are believers: