^{13 Ref} but exhort one another day by day, so long as it is called "today;" lest any one of you be hardened by the deceitfulness of sin.

^{14 Ref} For we have become partakers of Christ, if we hold fast the beginning of our confidence firm to the end:

^{15 Ref} while it is said, "Today if you will hear his voice, Don't harden your hearts, as in the rebellion."