Commentaries
30:13-20 The great thing needful in attendance upon God in solemn ordinances, is, that we make heart-work of it; all is nothing without this. Where this sincerity and fixedness of heart are, there may yet be many things short of the purification of the sanctuary. These defects need pardoning, healing grace; for omissions in duty are sins, as well as omissions of duty. If God should deal with us in strict justice, even as to the very best of our doings, we should be undone. The way to obtain pardon, is to seek it of God by prayer; it must be gotten by petition through the blood of Christ. Yet every defect is sin, and needs forgiveness; and should be matter to humble, but not to discourage us, though nothing can make up for the want of a heart prepared to seek the Lord.
14. they arose and took away the altars that were in Jerusalem—As a necessary preparation for the right observance of the approaching solemnity, the removal of the altars, which Ahaz had erected in the city, was resolved upon (2Ch 28:24); for, as the people of God, the Hebrews were bound to extirpate all traces of idolatry; and it was a happy sign and pledge of the influence of the Spirit pervading the minds of the people when they voluntarily undertook this important preliminary work.