Os Hillman said this quote

“ God often uses failure to make us useful. When Jesus called the disciples, He did not go out and find the most qualified and successful people. He found the most willing, and He found them in the workplace. He found a fisherman, a tax collector, and a farmer. The Hebrews knew that failure was a part of maturing in God. The Greeks used failure as a reason for disqualification. Sadly, in the Church, we often treat one another in this way. This is not God's way. We need to understand that failing does not make us failures. It makes us experienced. It makes us more prepared to be useful in God's Kingdom -- if we have learned from it. And that is the most important ingredient for what God wants in His children. ”