The Shepherd of Hermas

You shall keep them, said he, if your heart be pure towards the Lord, and all who ever purify their hearts from the vain desires of this world shall keep them, and shall live to God.

He said to me, You know that you, as the[*](Christians are strangers in the world) servants of God, are living in a strange country,[*](The idea of the conflict of interests between earthly and heavenly citizenship is common in early Christian literature. Cf. Heb. 13, 14. For here have we no continuing city, but we seek one to come.) for your city is far from this city. If then you know your city, in which you are going to dwell, why do you here prepare lands and costly establishments and buildings and vain dwellings?

He therefore, who prepares these things for this city, is not able to return to his own city.

O foolish and double-hearted and wretched man, do you not understand that all these things are foreign to you, and are under the power of another? For the Lord of this city will say: I do not wish you to dwell in my city, but go out from this city, because you do not use my law.