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

(21) Surely those who are with your Lord are not too proud to serve Him, and they declare His glory and prostrate in humility before Him.

(22) They have taken their doctors of law and their monks for lords besides Allah, and (also) the Messiah son of Marium and they were enjoined that they should serve one Allah only, there is no god but He; far from His glory be what they set up (with Him).

(23) They who turn (to Allah), who serve (Him), who praise (Him), who fast, who bow down, who prostrate themselves, who enjoin what is good and forbid what is evil, and who keep the limits of Allah; and give good news to the believers.

(24) Surely your Lord is Allah, Who created the heavens and the earth in six periods, and He is firm in power, regulating the affair, there is no intercessor except after His permission; this is Allah, your Lord, therefore serve Him; will you not then mind?

(25) And they serve beside Allah what can neither harm them nor profit them, and they say: These are our intercessors with Allah. Say: Do you (presume to) inform Allah of what He knows not in the heavens and the earth? Glory be to Him, and supremely exalted is He above what they set up (with Him).

(26) And on the day when We will gather them all together, then We will say to those who associated others (with Allah): Keep where you are, you and your associates; then We shall separate them widely one from another and their associates would say: It was not us that you served:

(27) Say: O people! if you are in doubt as to my religion, then (know that) I do not serve those whom you serve besides Allah but I do serve Allah, Who will cause you to die, and I am commanded that I should be of the believers.

(28) That you shall not serve (any) but Allah; surely I am a warner for you from Him and a giver of good news,

(29) That you shall not serve any but Allah, surely I fear for you the punishment of a painful day.

(30) And to Ad (We sent) their brother Hud. He said: O my people! serve Allah, you have no god other than He; you are nothing but forgers (of lies).