it is through listening that you we know the truth in the book of ( Romans 10 vs 17)
KJV:So then faith cometh by hearing, and hearing by the word of GOD.If someone have ear to ear let him ear the word of God not from convincer not from teaching not from man not from teachers not from haoula but the teaching of God.
Faith comes by earing and earing the word of God, the word of man can be camouflage but they are full of lies, miss conception and diception. Do not believe in the world of man only is not reliable source of truth. Man do not actually know the truth but God only know everything that is the truths.
And the best foundation of faith is the word of God is the absolute and realiable truth.