Chapter — Slater, Manual of Moral Theology
Chapter IV. Superstition
1.
Sins may be committed against the virtue of religion by excess or by defect in the same way as against other moral virtues. Sins against religion by excess come under the general term of superstition, of which there are several species. For the sin of superstition may be committed by worshipping the true God in the wrong way or by worshipping false gods. We will first briefly treat of the wrong ways of worshipping the true God, and afterwards of worship paid to false gods.
p. i, 140