God is glorified by showing Himself strong through our weaknesses. It shows us that He desires to work through our lives not because we are perfect but because HE is. And since He uses weak and foolish things (1 Cor. 1:27), it means you and I are prime candidates for His work.
The Lord isn’t looking for superheroes. He uses those of us who are flawed and frail, so that He can show His strength and grace. He wants those with a willing and available heart.