12 See to it brothers, that there not be in any one of you an evil, unbelieving heart that falls away from the living God. 13 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. 14 For we have become partakers of Christ, if we hold fast the beginning of our assurance firm until the end, 15 while it is said,
“Today if you hear His voice,
Do not harden your hearts, as when they provoked Me.”