Here he adds something more important -- that when the Israelites had returned to their country they would be sincere worshippers of God, and not only offer sacrifices in the temple, but purge the land of all its pollutions. Here also the Prophet admonishes them how great and detestable was the impiety of the ten tribes, because they had contaminated the land with idols. He does not here allude to the idols of the Gentiles, but rather reproves the Israelites because they had contaminated with their defilements the land which had been dedicated to God. Hence the Prophet exhorted his countrymen to repentance, when he shows that they were not cast out of the land before it was polluted; and therefore that they were justly punished for their sacrilege. This is one point. Afterwards we must remark, that we then truly and purely enjoy God's blessings, when we direct their use to that end which is here set before us, namely, pure and proper worship. Nothing more frequently meets us than this teaching -- that we have been redeemed by God that we may celebrate his glory; that the Church was planted that in it he may be glorified, and we may make known his attributes. Hence let us learn that God's benefits then issue in our safety, and are testimonies of his paternal favor when they excite us to worship him. Thirdly, we must remark, that we do not rightly discharge our duty towards God, unless when we purge his worship from all stain and defilement. Many so worship God, that they corrupt with vicious mixtures whatever obedience they seem to render. And to this day even, those who seem to themselves very wise, are shamefully divided between God and the devil, as if they could satisfy God with half their allegiance. Hence let us learn from this passage, that God abhors such deceivers; for when he says that the Israelites after their return should be devoted to piety, he indicates it by this mark -- that they shall take away all their abominations, and all their idols from the land. It afterwards follows --