In like manner, everyone who has received from God the power of distinguishing and yet follows an unskillful pastor and receives a false opinion for the truth shall be punished ... Be not deceived: if any man follows him who separates from the truth, he shall not inherit the kingdom of God; and if any man does not stand aloof from the preacher of falsehood he shall be condemned to Hell.
Ignatius of AntiochMore Ignatius of Antioch quotes
Christianity is not a matter of persuading people of particular ideas, but of inviting them to share in the greatness of Christ. So pray that I may never fall into the trap of impressing people with clever speech, but instead I may learn to speak with humility, desiring only to impress people with Christ himself.
Ignatius of Antioch