God uses times of stress, strain, and testing to develop our spiritual character. This is the way God grows us. It is at these times that we bring forth the spiritual strength that we have.
Look at God’s Word for examples to us, Elijah in 1 Kings 19 and David as he was hunted by King Saul. Both became very discouraged, but Elijah and David learned in their lowest times that the Lord would and did give them strength.