Luke 7:22 Jesus answered and said to them, “Go and tell John the things you have seen and heard: that the blind see, the lame walk, the lepers are cleansed, the deaf hear, the dead are raised, the poor have the gospel preached to them.
Did Jesus turn round to the disciples and tell them these things to boast about them? No!
What He was doing was telling them of the events which the prophets had said would happen when the Messiah came.
Jesus was trying to build up the case for them to fully accept Him as being the Messiah, giving them more proof so they could tell others of these same truths.
Jesus came to save the world and not to blame the world!