'Occurrence' in the Bible

These [are] the names of the mighty warriors who [were] David's: Josheb-Basshebeth a Tahkemonite [was] chief of three officers; first Adino, whose spear [was] against eight hundred slain on one occurrence.

But now Yahweh my God has given me rest all around me. There is no adversary, and there is no bad occurrence.