A Question Regarding The Belief On Allah s.w.t

The Prophet Muhammad s.a.w teaches us the Muslims that the Heaven is for those who worship Allah s.w.t with sincerity and in accordance with the ways of Islam. The Prophet s.a.w also teaches us the Muslims that the Hell is for those who does not worship Allah s.w.t and commit sinful acts against Him s.w.t. My question is that if Allah s.w.t does not create the Heaven and the Hell and just command us the Muslims just to worship Him s.w.t with sincerity, do you think that we as the Muslims will have motivation to commit such act of worship?