Checklist of Heresies condemned by the Catholic Church:

• Docetism teaches that Jesus only appeared to be human as a phantom. On the contrary, the Catholic Church teaches that Christ if fully God and fully human.
• Arianism teaches that Jesus not fully God, but only like God in a subordinate way. On the contrary, the Catholic Church teaches that Christ if fully God and fully man.
• Nestorianism teaches that Jesus is two “persons” – Jesus the human son of Mary and Jesus the divine Son of God. On the contrary, the Catholic Church teaches that Christ is one person with two natures: divine nature and human nature.
• Monophysitism teaches that Jesus is fully God but not fully man, the humanity of Christ being swallowed up by His divinity. On the contrary, the Catholic Church teaches that Christ has two natures: divine nature and human nature.
• Monothelitism teaches that Jesus has only one divine will. The Catholic Church teaches that Christ has two wills: a divine will and a human will belonging to His human soul.
• Iconoclasm teaches that images are idolatrous. On the contrary, the Catholic Church defends the use of Christian (not pagan) images since Christ became visible through the incarnation.
• Pelagianism denies original sin and teaches that grace is not necessary for salvation. On the contrary, the Catholic Church teaches that we are born in original sin and saved by grace through faith and works.