3Hebrews 3:19

17But with whom was he grieved forty years? was it not with them that had sinned, whose carcases fell in the wilderness?Select Hebrews 3:17

18And to whom sware he that they should not enter into his rest, but to them that believed not?Select Hebrews 3:18

19So we see that they could not enter in because of unbelief.Select Hebrews 3:19