We often have problems with believing that God’s supernatural power and authority still work in believers living in these modern times. Indeed, this same unbelief is what kept the 12 disciples from healing the epileptic boy. Fasting and praying are Christ’s recommendations for casting out this kind of unbelief.
Many of us who confidently profess our belief in God and Christ will speak or show unbelief when we are in situations that stretch our minds beyond our intellectual capacities. Therefore, it is never enough for us to say that we believe, if we cannot display that belief by stepping out of our boats (comfort zones), without looking back at the blustering wind and roaring waves, and acting afraid.