Christianity teaches that we have a choice in how we behave.Christianity " Teaches", that is the interest and tool of satan. He does not seek to stop them from teaching, only to continue to influence their teaching , and do so unawares. His deception is Great and perfect , because Christianity continues to teach , and their teaching is deceived; mixed with right and wrong, a deadly mixture of false and true knowledge , that is how satan operates; from the inside out! Like a giant Trojan horse that walks in the book of Revelation.