Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip. Hebrews 2:1 KJV
Paying attention to, and rehearsing, what you have heard preached will cause you to live what you’ve heard.
We having the same spirit of faith, according as it is written, I believed, and therefore have I spoken; we also believe, and therefore speak; 2 Corinthians 4:13 KJV
Faith comes by hearing, and that by the Word of God. What is critical to us is that we so cherish what we’ve received that we keep it on our lips and practice it in our daily lives. If we don’t it will slip away and drift into forgetfulness, it’s life giving power dissipated in our lives.
But be ye doers of the word, and not hearers only, deceiving your own selves. James 1:22 KJV
(For not the hearers of the law are just before God, but the doers of the law shall be justified. Romans 2:13 KJV.