Didache — Didache 1
The way of life, then, is this: First, you shall love God who made you; second, your neighbour as yourself; and all things whatsoever you would should not occur to you, do not also do to another.
Moral teaching of the two ways and the sermon tradition.
See how this topic lines up over time
The way of life, then, is this: First, you shall love God who made you; second, your neighbour as yourself; and all things whatsoever you would should not occur to you, do not also do to another.
The knowledge, therefore, which is given to us for the purpose of walking in this way, is the following. You shall love Him that created you: you shall glorify Him that redeemed you from death. You shall be simple in heart, and rich in spirit.
For He taught us to pray for our enemies also, saying, 'Love your enemies; be kind and merciful, as your heavenly Father is.' Luke 6:35 For we see that the Almighty God is kind and merciful, causing His sun to rise on the unthankful and on the righteous, and sending rain on the holy and on the wicked;
Concerning chastity, He uttered such sentiments as these: Whosoever looks upon a woman to lust after her, has committed adultery with her already in his heart before God.
For presenting the opinions themselves to which we adhere, as being not human but uttered and taught by God, we shall be able to persuade you not to think of us as atheists.
But I say unto you which hear (displaying here that old injunction, of the Creator: Speak to the ears of those who lend them to you ), Love your enemies, and bless those which hate you, and pray for them which calumniate you.