And the land be subdued before the LORD: then afterward ye shall return, and be guiltless (Heb. “clear”) before the LORD, and before Israel; and this land shall be your possession before the LORD. Numbers 32:22
Clear before the LORD, and before Israel. The idea contained in this phrase became a general moral maxim among the Rabbis. “Man should be clear not only before God but also in the estimation of his fellowmen.”
It is not enough that a man’s conscience is pure. He must strive to make even his outward actions irreproachable and above suspicion. A man should avoid doing things that appear wrong.
Hertz, Dr. J.H., The Pentateuch and Haftorahs, 2nd Ed., Soncino Press, London, 1992, pg 709