Mark 6:5
And He could not perform any supernatural deed there [i.e., because of their lack of faith in Him], except He placed hands on a few sick people [i.e., accompanied by prayer ?] and healed them.
Mark 5:23
He begged Him earnestly, saying, "My little daughter is about to die; [please] come and place your hands on her so she may be healed and live."
Mark 9:23
And Jesus said to him, "'If you can.' [Note: By repeating the man's words Jesus seems to be saying, "You mean, if YOU can believe"]. Everything is possible to the person who believes [it can happen]."
Matthew 13:58
So, He did not perform very many supernatural deeds in that place because of the people's lack of faith.
Hebrews 4:2
For we [Christians] have had the good news [about resting with God] preached to us, just as the Israelites [had good news proclaimed to them. See 1:16-19]. But the message they heard did not benefit them, because it was not coupled with faith by those who heard it.