NSB(i)
10 These men speak abusively about things they do not know. What they understand naturally, like the creatures without reason, they corrupt themselves.
11 Woe to them! They went in the way of Cain, and ran riotously in the error of Balaam for hire, and perished in the rebellious talk of Korah.
12 These men are hidden rocks in your love feasts when they feast (entertain) with you. They are shepherds that without fear feed themselves. They are clouds without water, carried along by winds. They are autumn leaves without fruit, twice dead, plucked up by the roots.