Hebrews 3:13-15

13But encourage one another daily, as long as it is called “Today,” so that none of you may be hardened by sin’s deceitfulness. 14We have come to share in Christ, if indeed we hold our original conviction firmly to the very end.

15As has just been said: “Today, if you hear his voice, do not harden your hearts as you did in the rebellion.” Psalm 95:7,8