Psalms 106:20

Those that will not wait for God's counsel, shall justly be given up to their own hearts' lusts, to walk in their own counsels. An undue desire, even for lawful things, becomes sinful. God showed his displeasure for this. He filled them with uneasiness of mind, terror of conscience, and self-reproach. Many that fare deliciously every day, and whose bodies are healthful, have leanness in their souls: no love to God, no thankfulness, no appetite for the Bread of life, and then the soul must be lean. Those wretchedly forget themselves, that feast their bodies and starve their souls. Even the true believer will see abundant cause to say, It is of the Lord's mercies that I am not consumed. Often have we set up idols in our hearts, cleaved to some forbidden object; so that if a greater than Moses had not stood to turn away the anger of the Lord, we should have been destroyed. If God dealt severely with Moses for unadvised words, what do those deserve who speak many proud and wicked words? It is just in God to remove those relations that are blessings to us, when we are peevish and provoking to them, and grieve their spirits.

Thus they changed their glory into the similitude of an ox that eateth grass. They said that they only meant to worship the one God under a fitting and suggestive similitude by which his great power would be set forth to the multitude; they pleaded the great Catholic revival which followed upon this return to a more ornate ceremonial, for the people thronged around Aaron, and danced before the calf with all their might. But in very deed they had given up the true God, whom it had been their glory to adore, and had set up a rival to him, not a representation of him; for how should he be likened to a bullock? The psalmist is very contemptuous, and justly so: irreverence towards idols is an indirect reverence to God. False gods, attempts to represent the true God, and indeed, all material things which are worshipped, are so much filth upon the face of the earth, whether they be crosses, crucifixes, virgins, wafers, relics, or even the Pope himself. We are by far too mealy mouthed about these infamous abominations: God abhors them, and so should we. To renounce the glory of spiritual worship for outward pomp and show is the height of folly, and deserves to be treated as such.