President Boyd K. Packer said: "A testimony is to be found in the bearing of it. Somewhere in your quest for spiritual knowledge, there is that ‘leap of faith,’ as the philosophers call it. It is the moment when you have gone to the edge of the light and step into the darkness to discover that the way is lighted ahead for just a footstep or two."
Making a determined and confident public statement of your belief is such a step into the unknown. It has a powerful effect in strengthening your own convictions. Bearing testimony drives your faith deeper into your soul, and you believe more fervently than before.
Joseph B. Wirthlin