Faith is to have an object, and that object is not to be ourselves and our performance. Our faith is to rest in the finished work of Christ.
I have discovered that it tests my faith the most when I have had a bad day and feel like I have blown it. Will I look to myself or keep my faith in Him.
It tests one’s faith the most to believe that they are still righteous when they have blown it. Remember it is about what He did, not what you are doing or not doing. Wow!