Setting the mind or the spirit

Hearing and saying

 The Bible maintains anyone can gain faith by hearing the word of God. I am not aware of any other method recommended. I believe the purpose behind this is that proof does not please God, only faith. 

In the Bible, one must choose individually that they will believe God, even the Holy Spirit and Jesus Christ. This is often referred to as making a decision for Christ. If a person has proof, I believe they are deceived logically ot otherwise, because if one has proof God does not want it. If one has mere proof then they do not need all important faith. 

So we believe by hearing but I also suggest we follow up believe by saying. I say this because God in Genesis puts everything into existence by saying. This is often credited, as far as we know for first time, to Moses. All what was formerly memorized was now to be written down on his direction. 

Jesus asks what we say

We might also notice that Jesus often asked on occasion those He healed whether they believed He could heal them. When they responded yes then He said, then let it be done onto you according to your belief. Was this His faith healing them on their confirmed belief? 

So by this I suggest we must say we accept the healing by saying so, healing which was offered and accomplished on the cross. There is no need to persuade God to heal us, it was given on the cross and we must accept it from our faith.. 

So if God speaks then we should speak. And like minded, we should follow Jesus question and answer yes also, since faith is required. 

So then also the atheist view might say, anything is believed when one sets their mind to it. I say set our spirit to it.