We used to hate and destroy one another and refused to associate with people of another race or country. Now, because of Christ, we live together with such people and pray for our enemies.
Justin MartyrFor I choose to follow not men or men's doctrines, but God and the doctrines [delivered] by Him. For if you have fallen in with some who are called Christians, but who do not admit this [truth], and venture to blaspheme the God of Abraham, and the God of Isaac, and the God of Jacob; who say there is no resurrection of the dead, and that their souls, when they die, are taken to heaven; do not imagine that they are Christians
Justin MartyrNow bring what we have into common stock, and communicate to everyone in need; we who hated and destroyed one another, and on account of their different tribe, now since the coming of Christ, live familiarly with them, and pray for our enemies, and endeavor to persuade those who hate us unjustly, to the end that they may become partakers of the same joyful hope of a reward from God the ruler of all.
Justin MartyrBecause of this basin of repentance and knowledge of God, which has been ordained for the transgression of God's people, as Isaiah cries, we have believed, and we testify that the very baptism which he announced is alone able to purify those who have repented. It is the water of life. But the cisterns which you have dug for yourselves are broken and of no benefit to you. For what is the use of a baptism which cleanses the flesh and body alone? Baptize the soul from wrath and from covetousness, from envy, and from hatred, and, lo, the body is pure.
Justin Martyr