Quote from A Course in Miracles Text Chapter 10 - THE IDOLS OF SICKNESS.

T-10.III.8. I do not bring God's message with deception, and you will learn this as you learn that you always receive as much as you accept. 2 You could accept peace now for everyone, and offer them perfect freedom from all illusions because you heard His Voice. 3 But have no other gods before Him or you will not hear. 4 God is not jealous of the gods you make, but you are. 5 You would save them and serve them, because you believe that they made you. 6 You think they are your father, because you are projecting onto them the fearful fact that you made them to replace God. 7 Yet when they seem to speak to you, remember that nothing can replace God, and whatever replacements you have attempted are nothing.