The Peril of Unbelief

12 1Take care, brethren, that there not be in any one of you an evil, unbelieving heart that falls away from 2the living God.
13 But 3encourage one another day after day, as long as it is still called "Today," so * that none * of you will be hardened by the 4deceitfulness of sin.
14 For we have become partakers of Christ, 5if we hold fast the beginning of our 6assurance firm until the end,
15 while it is said, "7TODAY IF YOU HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS, AS WHEN THEY PROVOKED ME."