Lightning...then Thunder

Here is a quote from one of my heroes, Henrietta Mears:

Remember, lightning that strikes

is accompanied by thunder.

So faith that strikes

is accompanied by life and testimony.

Ten years ago this song was pretty popular. It seems to go with this quote from H. M.
http://www.youtube.com/watch?v=IdwX2-jsrKU

My message and my preaching were not

with wise and persuasive words,

but with a demonstration of the Spirit's power,

so that your faith might not rest on man's wisdom,

but on God's power.

I Corinthians 2:4-5