Looking back, people can see how much they have accomplished and suffered without trying or thinking about it, even against their wishes and wills. They gave such little thought to what they were doing before it occured or when it was happening. Now, after everything has been carried out, they are amazed and say, "Why did these things happen to me when I never thought about them or thought something completely different could happen?" So Proverbs 16:9 is true: "In his heart a man plans his course, but the Lord determines his steps," even against his plan and will." So we must agree that our own cleverness and foresight don't guide our lives and actions. Instead, God's wonderful power, wisdom, and goodness guides us. Only as we look back do we fully recognize how often God was with us when we neither saw His hand nor felt His presence at the time it was happening. Accordingly, Peter said, "He cares for you" (1 Peter 5:7).
Even if there were no books or sermons to tell us about God, simply looking back on our own lives would prove that He tenderly carries us in His arms. When we look back on how God has led and brought us through so much evil, adversity, and danger, we can clearly see the ever-present goodness of God, which is far above our thoughts, minds, and perception.
Faith Alone Martin Luther