'Understand' in the Bible

Teach me, and I will hold my tongue; and cause me to understand wherein I have erred.

I would know the words he would answer me, and understand what he would say unto me.

Lo, these are the borders of his ways; but what a whisper of a word do we hear of him! And the thunder of his power, who can understand?

It is not the great that are wise; neither do the aged understand judgment.

But can any understand the spreadings of the clouds, or the crashing of his pavilion?

Who is he that obscureth counsel without knowledge? therefore have I uttered what I did not understand; things too wonderful for me, which I knew not.