Exodus 20:20 Moses said to the people, "Do not be afraid; for God has come in order to test you, and in order that the fear of Him may remain with you, so that you may not sin."

Deuteronomy 6:5 "You shall love the LORD your God with all your heart and with all your soul and with all your might.

Deuteronomy 8:2 "You shall remember all the way which the LORD 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.

Deuteronomy 8:16 "In the wilderness He fed you manna which your fathers did not know, that He might humble you and that He might test you, to do good for you in the end.

1 Corinthians 11:19 For there must also be factions among you, so that those who are approved may become evident among you. (NASB ©1995)