Hebrews 3:17-18
3:17 And against whom was God provoked for forty years? Was it not those who sinned, whose dead bodies fell in the wilderness?
3:18 And to whom did he swear they would never enter into his rest, except those who were disobedient?
Hebrews 10:25
10:25 not abandoning our own meetings, as some are in the habit of doing, but encouraging each other, and even more so because you see the day drawing near.