Hebrews 3:11

don’t harden your hearts as in the rebellion,

in the day of the trial in the wilderness,

where your fathers tested me and tried me,

and saw my deeds for forty years.

Therefore I was displeased with that generation,

and said, ‘They always err in their heart,

but they didn’t know my ways.’

Beware, brothers, lest perhaps there might be in any one of you an evil heart of unbelief, in falling away from the living God;

but exhort one another day by day, so long as it is called “today”, lest any one of you be hardened by the deceitfulness of sin.

For we have become partakers of Christ, if we hold the beginning of our confidence firm to the end,