'Knowledge' in the Bible

And these were the people who went up from Tel-melah, Tel-harsha, Cherub, Addan, and Immer. But having no knowledge of their fathers' families or offspring, it was not certain that they were Israelites;

Because you are sent by the king and his seven wise men, to get knowledge about Judah and Jerusalem, as you are ordered by the law of your God which is in your hand;

And you, Ezra, by the wisdom of your God which is in you, are to put rulers and judges to have authority over all the people across the river who have knowledge of the laws of your God; and you are to give teaching to him who has no knowledge of them.