Hebrews 3:7-8, 13

Therefore, just as the Holy Spirit says, “TODAY IF YOU HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS AS WHEN THEY PROVOKED ME, AS IN THE DAY OF TRIAL IN THE WILDERNESS

But encourage one another day after day, as long as it is still called “Today,” so that none of you will be hardened by the deceitfulness of sin.