Our yesterdays present irreparable things to us; it is true that we have lost opportunities which will never return, but God can transform this destructive anxiety into a constructive thoughtfulness for the future. Let the past sleep, but let it sleep on the bosom of Christ. Leave the Irreparable Past in His hands, and step out into the Irresistible Future with Him.

My Utmost for His Highest (1956). Section "December 31".