'Test the Heart' in the Bible

And I know, my God, that you yourself test the heart and are pleased with uprightness. I, in the uprightness of my heart, have willingly offered all these [things], and now I have seen your people who are found here willingly offer to you.

Let the evil of the wicked come to an end, but establish [the] righteous, and test the hearts and innermost being, O righteous God.