Berean Standard Bible (BSB)
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.
World English Bible (WEB)
For it was of Yahweh to harden their hearts, to come against Israel in battle, that he might utterly destroy them, that they might have no favor, but that he might destroy them, as Yahweh commanded Moses.
Strong's King James
For it was of the LORD{H3068} to harden{H2388}{(H8763)} their hearts{H3820}, that they should come against{H7125}{(H8800)} Israel{H3478} in battle{H4421}, that he might destroy them utterly{H2763}{(H8687)}, and that they might have no favour{H8467}, but that he might destroy{H8045}{(H8687)} them, as the LORD{H3068} commanded{H6680}{(H8765)} Moses{H4872}.
The F.O.G *
The F.O.G Message *
Young's Literal Translation
for from Jehovah it hath been to strengthen their heart, to meet in battle with Israel, in order to devote them, so that they have no grace, but in order to destroy them, as Jehovah commanded Moses.