'Understand' in the Bible

{I will not punish your daughters} when they play the whore, or your daughters-in-law when they commit adultery; because they go aside with whores, and they sacrifice with temple prostitutes, a people that does not understand comes to ruin.

Who [is] wise that he can understand these [things]? Who is discerning that he knows them? The ways of Yahweh [are] right, and [the] righteous walk in them; but transgressors stumble in them.