God works through jars of clay, or what I often call "cracked pots." This means we are flawed, so when people look at us and see amazing things happening, they know it must be God at work because it certainly could not be us. I believe anyone who really knows me does not have any difficulty realizing the work I am doing on earth today certainly must be God at work in and through me. They give Him the glory, not me, because they see my imperfections and know my limitations. God chooses the weak and foolish things on purpose so no mortal can have pretense for glorying in His presence (1 Corinthians 1:27-29).
Imagine a pot with a lamp in it and a lid on it. Even though it may be filled with light, no one can see the light within it. Yet if the pot is cracked, the light will shine through the cracks. In this same way, God works through our imperfections.
This was in my daily devotional today and I really liked it.
Thought I'd repost it; I hope it speaks something to you.