Consequently, faith comes from hearing the message, and the message is heard through the word of Christ. Romans 10:17
Faith is like a muscle, which must be exercised in order to become strong. Christians are to believe God, not only for salvation, but for everything. Faith is actually a process that involves increasing degrees of trust throughout life. The Lord may not do every miraculous thing you ask of Him, but He does some extraordinary work in and through each person who is obedient and willing to trust Him. He not only works through people of faith; He transforms them.
~Charles Stanley~ from: In Touch Devotional Booklet