The Shepherd of Hermas

But those who have the Lord on their lips, but their heart is hardened, and they are far from the Lord, for them these commandments are hard, and difficult to walk in.

Do you, therefore, who are empty and light in the faith, put the Lord into your heart, and you shall know that nothing is easier or sweeter or more gentle than these commandments.

Be converted, you who walk in the commandments of the devil, which are difficult and bitter and cruel and foul, and do not fear the devil, for there is no power in him against you.

For I, the angel of repentance who masters him, will be with you. The devil can only cause fear, but fear of him has no force. Therefore do not fear him and he will fly from you.