Hebrews 3:7-8, 13

Therefore, just as the Holy Spirit says, “TODAY IF YOU HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS AS [your fathers did] IN THE REBELLION [of Israel at Meribah], ON THE DAY OF TESTING IN THE WILDERNESS

But continually encourage one another every day, as long as it is called “Today” [and there is an opportunity], so that none of you will be hardened [into settled rebellion] by the deceitfulness of sin [its cleverness, delusive glamour, and sophistication].