Joshua 11:20
For it was of the LORD to harden their hearts to engage Israel in battle, so that they would be set apart for destruction and would receive no mercy, being annihilated as the LORD had commanded Moses.
General
Exodus 4:21
The LORD instructed Moses, “When you go back to Egypt, see that you perform before Pharaoh all the wonders that I have put within your power. But I will harden his heart so that he will not let the people go.
Exodus 9:16
But I have raised you up for this very purpose, that I might display My power to you, and that My name might be proclaimed in all the earth.
Deuteronomy 2:30
But Sihon king of Heshbon would not let us pass through, for the LORD your God had made his spirit stubborn and his heart obstinate, that He might deliver him into your hand, as is the case this day.
Judges 14:4
(Now his father and mother did not know this was from the LORD, who was seeking an occasion to move against the Philistines; for at that time the Philistines were ruling over Israel.)
1 Samuel 2:25
If a man sins against another man, God can intercede for him; but if a man sins against the LORD, who can intercede for him?” But they would not listen to their father, since the LORD intended to put them to death.
1 Kings 12:15
So the king did not listen to the people, and indeed this turn of events was from the LORD, to fulfill the word He had spoken to Jeroboam son of Nebat through Ahijah the Shilonite.
1 Kings 22:20-23
And the LORD said, ‘Who will entice Ahab to march up and fall at Ramoth-gilead?’ And one suggested this, and another that. Then a spirit came forward, stood before the LORD, and said, ‘I will entice him.’ ‘By what means?’ asked the LORD. And he replied, ‘I will go out and be a lying spirit in the mouths of all his prophets.’ ‘You will surely entice him and prevail,’ said the LORD. ‘Go and do it.’ So you see, the LORD has put a lying spirit in the mouths of all these prophets of yours, and the LORD has pronounced disaster against you.”
2 Chronicles 25:16
While he was still speaking, the king asked, “Have we made you the counselor to the king? Stop! Why be struck down?” So the prophet stopped, but he said, “I know that God has determined to destroy you, because you have done this and have not heeded my advice.”
Isaiah 6:9-10
And He replied: “Go and tell this people, ‘Be ever hearing, but never understanding; be ever seeing, but never perceiving.’ Make the hearts of this people calloused; deafen their ears and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.”
Romans 9:18,22-23
Therefore God has mercy on whom He wants to have mercy, and He hardens whom He wants to harden. ... What if God, intending to show His wrath and make His power known, bore with great patience the vessels of His wrath, prepared for destruction? What if He did this to make the riches of His glory known to the vessels of His mercy, whom He prepared in advance for glory—
General
Joshua 11:12-15
Joshua captured all these kings and their cities and put them to the sword. He devoted them to destruction, as Moses the LORD’s servant had commanded. Yet Israel did not burn any of the cities built on their mounds, except Hazor, which Joshua burned. The Israelites took for themselves all the plunder and livestock of these cities, but they put all the people to the sword until they had completely destroyed them, not sparing anyone who breathed. As the LORD had commanded His servant Moses, so Moses commanded Joshua. That is what Joshua did, leaving nothing undone of all that the LORD had commanded Moses.
Deuteronomy 20:16-17
However, in the cities of the nations that the LORD your God is giving you as an inheritance, you must not leave alive anything that breathes. For you must devote them to complete destruction—the Hittites, Amorites, Canaanites, Perizzites, Hivites, and Jebusites—as the LORD your God has commanded you,