James C. Dobson said this quote
“ There is no record in Scripture that an angel visited John’s cell to explain the meaning of his persecution. This great, godly man who was the designated forerunner to Jesus went through the same confusing experiences as we. It is comforting to know that John responded in a very human way. He sent a secret message to Jesus from his prison cell, asking “Are you the one who was to come, or should we expect someone else?” (Matthew 11:3). Have you ever felt like asking that question? ”