Hebrews 4:1; Hebrews 10:29; Hebrews 12:10; Hebrews 12:11

Hebrews 4:1

1 Therefore, since the promise of entering his rest still stands, let us be careful that none of you be found to have fallen short of it.

Hebrews 10:29

29 How much more severely do you think someone deserves to be punished who has trampled the Son of God underfoot, who has treated as an unholy thing the blood of the covenant that sanctified them, and who has insulted the Spirit of grace?

Hebrews 12:10

10 They disciplined us for a little while as they thought best; but God disciplines us for our good, in order that we may share in his holiness.

Hebrews 12:11

11 No discipline seems pleasant at the time, but painful. Later on, however, it produces a harvest of righteousness and peace for those who have been trained by it.