James 1:22

Be doers of the word, and not hearers only, deceiving yourselves.

When we were in school, we would practice the things we were learning.  The Bible takes consistent practice until its teaching becomes a habit.  That is why we read it every day, so we remember and renew our minds.  Then joy comes to us as we walk uprightly before the Lord and in His word.  The rough spots smooth out, and hope is sustained in our hearts.