If there’s no God, any sense of purpose and meaning that humans have is nothing but biologically induced myth. If there’s no God, the concept of universal moral standards makes no sense, and all human behavior is amoral. One way people try to avoid being accountable to God is to declare that there is no God.
If there’s no God, then ethics is only personal preference. If there is no God, then the amazing design we see throughout nature (and our awareness of that design) is a mere random product of time and chance. If there’s no God, how did you get the consciousness to read and understand this question?
Muslims, Christians, and Jews agree on who God is–the eternal, personal being who created the Universe. That belief is called monotheism. The ancient Egyptians, Greeks, and Romans didn’t believe in one God, but in many gods–polytheism. The Hindus are also polytheistic. The Buddhists are pantheistic–meaning that they believe in a god that is an impersonal force that inhabits everything in the Universe. And some people are atheistic–meaning that they believe the Universe came into being randomly with no gods or God, by nothing more than time and chance.
Flow with purpose.