Unbelieving

Mark 6:6

6 And He marveled because of their unbelief. Then He went about the villages in a circuit, teaching.

Luke. 12:46

46 "the master of that servant will come on a day when he is not looking for [him], and at an hour when he is not aware, and will cut him in two and appoint [him] his portion with the unbelievers.

Heb. 3:12

12 Beware, brethren, lest there be in any of you an evil heart of unbelief in departing from the living God;