The only way faith comes is by hearing the Word preach and taught. That leads to the question, What do we hear?
We can be sitting in church listening to the message preached and not be hearing. As it is written:
Having eyes, see ye not? and having ears, hear ye not? and do ye not remember? And he said unto them, How is it that ye do not understand? Mark 8:18, 21 KJV
Spiritual things are only understood by spiritually attuned people. You can be born-again and yet be carnally (naturally) minded.
But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned. 1 Corinthians 2:14 KJV
Are you hearing?
He that hath an ear, let him hear what the Spirit saith unto the churches; . . . Revelation 2:7 KJV
Your life is determined by what you hear, receive, believe, say, and act upon.
But wilt thou know, O vain man, that faith without works [without corresponding action] is dead? James 2:20 KJV