I delight to do Thy will, O my God: yea, Thy law is within my heart. Psalm 40:8 (KJV)
Devotion is really neither more nor less than a general inclination and readiness to do that which we know to be acceptable to God. It is that “free spirit” of which David spoke when he said, “I will run the way of Thy commandments, when Thou hast set my heart at liberty.” People of ordinary goodness walk in God’s way, but the devout run in it, and at length they almost fly therein. To be truly devout, we must not only do God’s will, but we must do it cheerfully.
St. Francis De Sales