Any teaching which implies that Faith can be humanly manufactured or earned is not the Gospel. God is our Faith...Who works by God...Who is Love. We can discover, apply, and enjoy Faith...but we can't manufacture Faith...anymore than we can manufacture God.
Faith is only OUR Faith, because we have been made one with the Spirit of Faith. Your Faith is only YOURS because it was given to you by your loving, heavenly Father; just like we give gifts to our children...and they ...become "theirs" to use, enjoy, and develop ("build up") their skills through practical application.
While Faith is DISCOVERED through the Word, Faith is never "EARNED" by reading, studying and meditating upon the Word. Those are things that we do...because Faith, working by Love, compels us to discover, apply, and enjoy Who Faith is...FOR, IN, and THROUGH us!
Gal 2:20,21 "I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me. I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain." Again... You can't manufacture Faith anymore than you can manufacture God.
Jesus is the Substance of things hoped for and the Evidence of things not seen under the Old Covenant!