Some lessons we can learn here is that when we have doubts, send them to Jesus. We should also never judge the reality by outward appearances. Though Jesus never visited John in prison, He had a high regard for him, and we can expect in our trials at times not to hear, "Well done, good and faithful servant," down here. There is a difference between doubting struggling faith and disbelieving, and the good news is that God accepts struggling faith as faith.