“And Jesus answered them, "Go and tell John what you hear and see: the blind receive their sight and the lame walk, lepers are cleansed and the deaf hear, and the dead are raised up, and the poor have good news preached to them. And blessed is the one who is not offended by me."”
Matthew 11:4-6 ESV
What if Jesus meant by this, "I am doing all these miracles. They are real, and are really happening. Blessed are those who hear these facts and do not stumble in their faith because they don't receive any of these miracles. Why did Jesus let John rot in prison? Was it because He had no miraculous power? No, look at all these amazing things He was doing. I don't see Jesus explaining why here, but He does recognize that Jesus' selectivity about who He gives miracles to could cause some people to stumble. Blessed are those who are not offended when I don't give them a miracle. Blessed are those whose faith does not rely on they themselves receiving miracles from God's hands.