'Appearance' in the Bible

A figure stood there,but I could not recognize its appearance;a form loomed before my eyes.I heard a quiet voice:

You completely overpower him, and he passes on;You change his appearance and send him away.

“Will you have faith and depend on him to return your grainAnd gather it from your threshing floor?

Lo, the hope of him is found a liar, Also at his appearance is not one cast down?