For 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 MartyrLet it be understood that those who are not found living as He taught are not Christian- even though they profess with the lips the teaching of Christ.
Justin MartyrAnd if we even affirm that He was born of a virgin, accept this in common with what you accept of Perseus.
Justin MartyrGod called Abraham and commanded him to go out from the country where he was living. With this call God has roused us all, and now we have left the state. We have renounced all the things the world offers.... The gods of the nations are demons.
Justin Martyr