When men worship any other person or thing than the one only, living and true God, when they have and serve any other god before or besides the true God; and this is gross idolatry and a breach of the first commandment.
When they worship the true God but with false worship, such as never came into his mind, but is the mere product of their own invention, which yet they observe instead of, or mix or join with his institutions. This is a breach of the second commandment, and very offensive to a jealous God.
When the object of the worship is right, and the worship it elf is for the matter, or as to the externals thereof true, but its miscarriage lies in the manner of doing it, in that it is done with a dissembling heart, or in a cold formal manner. And this sin is forbidden in the third commandment, which directs about the right manner of performing true worship (both natural and instituted) to the true God. Joshua Moodey, Vain Imaginations in the Worship of God.
