'Known' in the Bible

For my people is foolish, they have not known me; they are sottish children, and they have no intelligence; they are wise to do evil, but to do good they have no knowledge.

and will scatter them among the nations, whom neither they nor their fathers have known; and I will send the sword after them, till I have consumed them.

because they have forsaken me, and have estranged this place from me, and have burned incense in it unto other gods, whom neither they nor their fathers have known, nor the kings of Judah; and have filled this place with the blood of innocents;

The prophet that prophesieth of peace, when the word of the prophet shall come to pass, shall be known as the prophet whom Jehovah hath really sent.