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

(41) That ye serve none, save Allah. Lo! I fear for you the retribution of a painful Day.

(42) And unto (the tribe of) A'ad (We sent) their brother, Hud. He said: O my people! serve Allah! Ye have no other Allah save Him. Lo! ye do but invent.

(43) And unto (the tribe of) Thamud (We sent) their brother Salih. He said: O my people! serve Allah, Ye have no other Allah save Him. He brought you forth from the earth and hath made you husband it. So ask forgiveness of Him and turn unto Him repentant. Lo! my Lord is Nigh, Responsive.

(44) And unto Midian (We sent) their brother Shu'eyb. He said: O my people! serve Allah. Ye have no other Allah save Him! And give not short measure and short weight. Lo! I see you well-to-do, and lo! I fear for you the doom of a besetting Day.

(45) Those unto whom We gave the Scripture rejoice in that which is revealed unto thee. And of the clans there are who deny some of it. Say: I am commanded only that I serve Allah and ascribe unto Him no partner. Unto Him I cry, and unto Him is my return.

(46) And when Abraham said: My Lord! Make safe this territory, and preserve me and my sons from serving idols.

(47) And serve thy Lord till the Inevitable cometh unto thee.

(48) And verily We have raised in every nation a messenger, (proclaiming): serve Allah and shun false gods. Then some of them (there were) whom Allah guided, and some of them (there were) upon whom error had just hold. Do but travel in the land and see the nature of the consequence for the deniers!

(49) Have they not observed all things that Allah hath created, how their shadows incline to the right and to the left, making prostration unto Allah, and they are lowly?

(50) So eat of the lawful and good food which Allah hath provided for you, and thank the bounty of your Lord if it is Him ye serve.