'Headlong' in the Bible

He gave them leave; and the foul spirits came out and entered into the swine, and the herd--about 2,000 in number--rushed headlong down the cliff into the Lake and were drowned in the Lake.

Alas for them; for they have followed in the steps of Cain; for the sake of gain they have rushed on headlong in the evil ways of Balaam; and have perished in rebellion like that of Korah!