New Revised Standard Version
For it was the LORD’s doing to harden their hearts so that they would come against Israel in battle, in order that they might be utterly destroyed, and might receive no mercy, but be exterminated, just as the LORD had commanded Moses.

New American Bible
For it was the LORD’s doing to make their hearts obstinate to meet Israel in battle, that they might be put under the ban without mercy, and be destroyed as the LORD had commanded Moses.

Douay-Rheims Bible
For it was the sentence of the Lord, that their hearts should be hardened, and they should fight against Israel, and fall, and should not deserve any clemency, and should be destroyed as the Lord had commanded Moses.

For it was the sentence of the Lord, that their hearts should be hardened, and they should fight against Israel, and fall, and should not deserve any clemency, and should be destroyed as the Lord had commanded Moses.

it was

Exodus 4:21 And the Lord said to him as he was returning into Egypt: See that thou do all the wonders before Pharao, which I have put in thy hand: I shall harden his heart, and he will not let the people go.

Exodus 9:16 And therefore have I raised thee, that I may shew my power in thee, and my name may be spoken of throughout all the earth.

Deuteronomy 2:30 And Sehon the king of Hesebon would not let us pass: because the Lord thy God had hardened his spirit, and fixed his heart, that he might be delivered into thy hands, as now thou seest.

Judges 14:4 Now his parents knew not that the thing was done by the Lord, and that he sought an occasion against the Philistines: for at that time the Philistines had dominion over Israel.

1 Samuel 2:25 If one man shall sin against another, God may be appeased in his behalf: but if a man shall sin against the Lord, who shall pray for him? And they hearkened not to the voice of their father, because the Lord would slay them.

1 Kings 12:15 And the king condescended not to the people: for the Lord was turned away from him, to make good his word, which he had spoken in the hand of Ahias, the Silonite, to Jeroboam, the son of Nabat.

1 Kings 22:20-23 And the Lord said: Who shall deceive Achab, king of Israel, that he may go up, and fall at Ramoth Galaad? And one spoke words of this manner, and another otherwise. . . .

2 Chronicles 25:16 And when he spoke these things, he answered him: Art thou the king's counsellor? be quiet, lest I kill thee. And the prophet departing, said: I know that God is minded to kill thee, because thou hast done this evil, and moreover hast not hearkened to my counsel.

Isaiah 6:9,10 And he said: Go, and thou shalt say to this people: Hearing, hear, and understand not: and see the vision, and know it not. . . .

Romans 9:18,22,23 Therefore he hath mercy on whom he will. And whom he will, he hardeneth. . . .

as the Lord

Joshua 11:12-15 And he took and put to the sword and destroyed all the cities round about, and their kings, as Moses the servant of God had commanded him. . . .

Deuteronomy 20:16,17 But of those cities that shall be given thee, thou shalt suffer none at all to live: . . .