‘ So God subdued on that day Jabin, the king of Canaan, before the children, of Israel.'
Jabin's efforts through his standing army had been thwarted, and instead it was he who had been subdued. His general was dead, his army decimated. It was something from which he would never recover. Note the use of ‘God' instead of Yahweh. What had happened in Jael's tent was not seen as a direct act of Yahweh. She had been inspired by other motives.