'Knew' in the Bible

only that the generations of the children of Israel might know, to teach them war, at the least such as before knew nothing of it:

But the angel of Yahweh did no more appear to Manoah or to his wife. Then Manoah knew that he was the angel of Yahweh.

When they were by the house of Micah, they knew the voice of the young man the Levite; and they turned aside there, and said to him, "Who brought you here? What do you do in this place? What do you have here?"