Only in Mark
4 verses in Mark.
Mark 2:7Why doth this man thus speak blasphemies? who can forgive sins but God only?
Mark 5:36As soon as Jesus heard the word that was spoken, he saith unto the ruler of the synagogue, Be not afraid, only believe.
Mark 6:8And commanded them that they should take nothing for their journey, save a staff only; no scrip, no bread, no money in their purse:
Mark 9:8And suddenly, when they had looked round about, they saw no man any more, save Jesus only with themselves.