Hebrews 2:1-3

Warning Against Drifting Away

2:1 Therefore we must pay closer attention to what we have heard, so that we do not drift away. 2:2 For if the message spoken through angels proved to be so firm that every violation or disobedience received its just penalty, 2:3 how will we escape if we neglect such a great salvation? It was first communicated through the Lord and was confirmed to us by those who heard him,

Hebrews 3:17

3:17 And against whom was God provoked for forty years? Was it not those who sinned, whose dead bodies fell in the wilderness?

Hebrews 10:28-29

10:28 Someone who rejected the law of Moses was put to death without mercy on the testimony of two or three witnesses. 10:29 How much greater punishment do you think that person deserves who has contempt for the Son of God, and profanes the blood of the covenant that made him holy, and insults the Spirit of grace?