Faith in God is trust in Him, based on a true understanding of who He is, as revealed in the Bible. Faith in God involves an intellectual assent to the facts concerning God and a life-changing reliance on those facts. Faith in God has several components. The first is believing that He actually exists. However, simply believing that God exists is not enough. As James 2:19 KJV explains, the demons believe in God’s existence as well.
After acknowledging that God exists, the second element of faith in God is commitment. Faith that does not result in action is a dead faith, not true faith (James 2:26 KJV). However, even a faith in God that motivates us to action is not enough. For faith in God to be genuine, we must accept Him as He has revealed Himself in Scripture. We are not allowed to accept the attributes of God that we prefer and reject the ones we don’t. If we do not accept God as He is, then we are putting our faith in a false god of our own making. Much “religion” does exactly this, but any religion not based on the Bible is a designer religion with a designer god. For faith in God to be genuine, it must be based on the genuine God. For example, the God of the Bible is triune, so true faith in God must accept the deity and personality of the Son and the Holy Spirit as well as the Father.
Faith is simply trust. The Christian trusts in God. The scientific atheist has faith in science. If an atheist uses the scientific method to discover a medicine and then takes that medicine, he is exercising faith. He trusts his data, and he trusts that the medicine will cure him, not poison him. Some people may take the medicine with no thought whatsoever as to how it was developed or as to who prepared it. Others may only take the medicine after thoroughly investigating every aspect of the research. One person may take it with great confidence while another person takes it tentatively. In the final analysis, anyone who takes the medicine is exercising faith in the medicine. Ultimately, it is not the strength of the faith that determines if the medicine will work, but the efficacy of the medicine. Great faith in bad medicine will not cure a person. It is the object of faith, not the strength of faith that makes the difference. Uncertainty about a good medicine will not hinder its efficacy, as long as it is taken as prescribed.
Let's correct this notion that Satan is more powerful than God. Our unbelief is ruining our lives. Satan is sitting back and laughing because he is doing nothing at times, and he still has the upper hand on our situations. Doubt is our friends that we must unfollow and unfriend. God hates unbelief. So, its best we say "Goodbye" to our friend called Doubt!