So then, God has mercy on whom he chooses to have mercy, and he hardens whom he chooses to harden.

“Do not harden your hearts as in the rebellion, in the day of testing in the wilderness.

But exhort one another each day, as long as it is called “Today,” that none of you may become hardened by sin’s deception.

As it says, “Oh, that today you would listen as he speaks! Do not harden your hearts as in the rebellion.”

But when some were stubborn and refused to believe, reviling the Way before the congregation, he left them and took the disciples with him, addressing them every day in the lecture hall of Tyrannus.

So God again ordains a certain day, “Today,” speaking through David after so long a time, as in the words quoted before, “O, that today you would listen as he speaks! Do not harden your hearts.”