Deuteronomy 8:16

Now it happened after these things, that God tested Abraham and said to him, “Abraham!” And he said, “Here I am.”

Then he cried out to Yahweh, and Yahweh showed him a tree; and he threw it into the waters, and the waters became sweet. There He set for them a statute and a judgment, and there He tested them.

Then Yahweh said to Moses, “Behold, I will rain bread from heaven for you; and the people shall go out and gather a day’s portion every day, that I may test them, whether or not they will walk in My law.

And the house of Israel named it manna, and it was like coriander seed, white, and its taste was like wafers with honey.

“And you shall remember all the way which Yahweh your God has led you in the wilderness these forty years, that He might humble you, testing 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 that dreamer of dreams; for Yahweh your God is testing you to find out if you love Yahweh your God with all your heart and with all your soul.

Even in the matter of the envoys of the rulers of Babylon, who sent to him to inquire of the miraculous sign that had happened in the land, God left him alone only to test him, that He might know all that was in his heart.

You are good and do good; Teach me Your statutes.

“And some of those who have insight will fall, in order to refine, purge, and make them pure until the time of the end, because it is still to come at the appointed time.