Lucius Caecilius Firmianus Lactantius

Now the first step is to understand false religions, and to throw aside the impious worship of gods which are made by the hand of man. But the second step is to perceive with the mind that there is but one Supreme God, whose power and providence made the world from the beginning, and afterwards continues to govern it. The third step is to know His Servant and Messenger, whom He sent as His ambassador to the earth, by whose teaching being freed from the error in which we were held entangled, and formed to the worship of the true God, we might learn righteousness. From all of these steps, as I have said, there is a rapid and easy gliding to a downfall, unless the feet are firmly planted with unshaken stedfastness.

We see those shaken off from the first step, who, though they understand things which are false, do not, however, discover that which is true; and though they despised earthly and frail images, do not betake themselves to the worship of God, of whom they are ignorant. But viewing with admiration the elements of the universe, they worship the heaven, the earth, the sea, the sun, the moon, and the other heavenly bodies.

But we say that those fall from the second step, who, though they understand that there is but one Supreme God, nevertheless, ensnared by the philosophers, and captivated by false arguments, entertain opinions concerning that excellent majesty far removed from the truth; who either deny that God has any figure, or think that He is moved by no affection, because every affection is a sign of weakness, which has no existence in God. But they are precipitated from the third step, who, though they know the Ambassador of God, who is also the Builder of the divine and immortal temple, either do not receive Him, or receive Him otherwise than faith demands.