TSK
Treasury of Scripture Knowledge references in WEB.
You shall remember all the way which Yahweh your God has led you these forty years in the wilderness, that he might humble you, to prove you, to know what was in your heart, whether you would keep his commandments, or not.
you shall not listen to the words of that prophet, or to that dreamer of dreams: for Yahweh your God proves you, to know whether you love Yahweh your God with all your heart and with all your soul.
However in [the business of] the ambassadors of the princes of Babylon, who sent to him to inquire of the wonder that was done in the land, God left him, to try him, that he might know all that was in his heart.