Romans 9:18
So then he hath mercy on whom he will, and hardeneth whom he will.
Romans 9:22-23
What if God endured with much patience vessels of wrath fitted for destruction, purposing to manifest his wrath and to make known his power;
Treasury of Scripture Knowledge
Summary
For it was of the LORD to harden their hearts, that they should come against Israel in battle, that he might destroy them utterly, and that they might have no favour, but that he might destroy them, as the LORD commanded Moses.
It was
Bible References
It was
Romans 9:18
So then he hath mercy on whom he will, and hardeneth whom he will.