Then the people rejoiced, for that they offered willingly, because with perfect heart they offered willingly to the LORD: and David the king also rejoiced with great joy.
Ver. 9. Because with perfect heart.] Void of hypocrisy or vain glory; and such, for the most part, have a habitual cheerfulness, as shaping their course by the chart of God's word, and approving their hearts and lives to him in "simplicity and godly sincerity," which is the mother of serenity and joy.