And they were [left], to prove Israel by them, to know whether they would hearken to the commandments of LORD, which he commanded their fathers by Moses.
And thou shall remember all the way which LORD thy God has led thee these forty years in the wilderness, that he might humble thee, to prove thee, to know what was in thy heart, whether thou would keep his commandments, or not.
And he cried to LORD. And LORD showed him a tree, and he cast it into the waters, and the waters were made sweet. There he made for them a statute and an ordinance, and there he proved them,