'Know' in the Bible

And our adversaries say, 'They do not know, nor see, till that we come in to their midst, and have slain them, and caused the work to cease.'

and it cometh to pass, when all our enemies have heard, and all the nations who are round about us see, that they fall greatly in their own eyes, and know that by our God hath this work been done.

And I know that the portions of the Levites have not been given, and they flee each to his field -- the Levites and the singers, doing the work.