Hebrews 3:9

5Moses indeed was faithful in all his house as a servant, for a testimony of those things which were afterward to be spoken,

6but Christ is faithful as a Son over his house. We are his house, if we hold fast our confidence and the glorying of our hope firm to the end.

7Therefore, even as the Holy Spirit says, “Today if you will hear his voice,

8don’t harden your hearts as in the rebellion, in the day of the trial in the wilderness,

9where your fathers tested me and tried me, and saw my deeds for forty years.

10Therefore I was displeased with that generation, and said, ‘They always err in their heart, but they didn’t know my ways.’

11As I swore in my wrath, ‘They will not enter into my rest.’”

12Beware, brothers, lest perhaps there might be in any one of you an evil heart of unbelief, in falling away from the living God;

13but 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.