servers of god :
1-some how serve the god not trust
ومن الناس من یعبد الله علی حرف فان اصابه خیر اطمان به وان اصابته فتنه انقلب علی وجهه خسر الدنیا والاخره ذلک هو الخسرن المبین - سوره حج

11. There are among men some who serve Allah, As it Were, on the verge: if good befalls them, They are, therewith, well content; but if a trial comes to them, They turn on their faces: They lose both This world and the Hereafter: that is loss for all to see!

2- some men serv allah really

Like prophets here is some story about yuosuf
ولقد همت به وهم بها لو لا ان رءا برهان ربه کذلک لنصرف عنه السوء والفحشاء انه من عبادنا المخلصین. Surah yuosuf verse 24
24. And (with passion) did she desire him, and He would have desired her, but that He saw the evidence of His Lord: Thus (did we order) that we might turn away from Him (all) evil and shameful deeds: for He was one of Our servants, sincere and purified.