And they were to prove Israel by them, to know whether they would hearken unto the commandments of the Lord, which he commanded their fathers by the hand of Moses.
And he cried unto the Lord; and the Lord showed him a tree, which when he had cast into the waters, the waters were made sweet. There he made for them a statute and an ordinance, and there he proved them,
And of Levi he said, Let thy Thummim and thy Urim be with thy holy one, whom thou didst prove at Massah, and with whom thou didst strive at the waters of Mer´ibah;
And thou shalt remember all the way which the Lord thy God led thee these forty years in the wilderness, to humble thee, and to prove thee, to know what was in thine heart, whether thou wouldest keep his commandments, or no.