There are different kinds of belief.
People can make themselves believe in things. We call that make-believe. Some people use words like presupposition or assumption to describe this kind of belief. All logic must be based on some form of belief, either make-believe or real. For example, a person can make themselves believe in atheism, evolutionism, naturalism, materialism, or uniformitarianism–this is make-believe.
There is one type of belief that is different from the rest in that it is not human-generated but God-generated. This is the faith of God, and it only comes by hearing the utterance of God. No person can sincerely say that Jesus is Lord except by the faith of God, which is given by the Holy Spirit.
Jesus told Pilate that everyone who is on the side of truth hears Him. Another time, He said that His sheep hear His voice. For a true Christ-follower, hearing Christ’s voice is a continuous stream of revelation of reality, that is, truth, and it leads to more developed spiritual senses and better discernment over time. Today, if you hear His voice, don’t harden your heart as they did when God brought His judgment on Israel.
There are indeed many gods, but only one true God. There are people who worship demons (earth spirits, Hindu gods, etc.). Humanists worship humanity. Some people only answer to themselves so they become their own gods. Others follow such gods as pleasure, possessions, education, or power. Some Christians, even very religious ones, actually become disconnected from Jesus by failing to listen to His voice and obey Him. The true God is exclusive. Whoever seeks Jesus does find Him, and Jesus approaches every person. Some harden their hearts against Him and refuse to hear His voice. They argue against Him and try every mental maneuver to avoid Him. With these, God turns them over to their own natural mind, which is reprobate, deceitful, and desperately wicked.

