Faith and reason.
1Jo 5.4-5

"For everyone who is born of God overcomes the world; and this is the victory that overcomes the world: our faith. Who is the one who overcomes the world, but he who believes that Jesus is the Son of God? "

To be born of God means to receive the faith that comes from the word of the Father and to be transformed in the spirit. The spirit of the people is without fellowship with the Father. This bond has been cut because of the sin of Adam.
The faith that comes from the word of God, from Jesus, restores this communion, recreates the human spirit, giving conditions, potential to believe in the creator.
Our reason, the mind, the soul is also sanctified by the faith that is born in the spirit. The mind, reason perceives what faith teaches, reveals to the spirit and sanctifies itself, assuming the light, the understanding that grasped, perceived the spirit.
Faith comes and we believe, we assume that certainty within us, and as we preach, pray, persevere in the direction given to us, we become victorious over what we believe, it has been revealed to us.
The person can be healed when faith comes, to be successful in any area of ​​life.
Faith comes into us and awakens our spirit, placing certainty about that biblical promise, about what the bible says, and our mind, reason perceives, understands, and assumes through decision.
This is how the working of the Holy Spirit teaches each person. It is the life of faith that God has prepared for us through Jesus.
What Jesus did, his faith is transmitted to us. Jesus is the source of faith, of the living waters, of the heavenly treasures.

God bless us with our faith in Jesus.