On Psalm 1:2 "His Delight is in the Law of the Lord"

"However, there are some even today who strive to twist this prophet's mouth and pervert his tongue. By their inflated thoughts and twisted works they want the law of the Lord to be in their pleasure and not their delight in the law of the Lord. This also the Jews wanted (beyond the fact that their delight was not in the law of the Lord, as stated above) when they desire that what pleases them, what they determine, what they affirm to be acceptable to God. But in this way they set up the Law for God, as if He were bound to take what they wished and chose, rather than that they received the Law from Him in order to do what He chooses and wishes. Such people, I say, chiefly many of the religious now are. They have reserved judgment to themselves beyond the command of their superior, and they want to make their own decisions and teach him what he ought to be commanding them. Or certainly, before they do what they are ordered to do, they want him to give the reason for it and to show them why and for what purpose he issued this order. [emphasis added] [...] And they would not do it except because they have the arrogance to want to do the judging and not be judged, and their delight is not in His law, but precisely His law is at their pleasure. Now certainly this is not being under the superior but over him."

-- Martin Luther, "Psalm 1", Luther's Works, Vol. 10: First Lectures on the Psalms. St. Louis: Concordia Publishing House, 1974.