They asked Jesus about His return concerning the last days. Jesus responds "only the Father knows". Here is a powerful truth within this text that can help us all. Jesus could trust the "unknown" with His Father in Heaven. He didn't have an answer but He trusted God to work it out!. Sometimes we want know what to do, we want answers, seek explanation. It is during times like these we should learn to "leave things with God". Trust Him with the unknowns.
