'Man of Understanding' in the Bible

Also Jonathan, David's uncle, was a counselor, a man of understanding, and a scribe. And Jehiel the son of Hachmoni was with the king's sons.

that the wise man may hear, and increase in learning, and that the man of understanding may attain to sound counsels,

It is as sport to a fool to do mischief, and [so is] wisdom to a man of understanding.

He who despises his neighbor is void of wisdom, but a man of understanding holds his peace.

Folly is joy to him who is void of wisdom, but a man of understanding makes his going straight.

He who spares his words has knowledge, and he who is of a cool spirit is a man of understanding.

Purpose in the heart of man is deep water, but a man of understanding will draw it out.