Justin Martyr on Prophecy and Evangelism in 160CE

For the prophetical gifts remain with us, even to the present time. And hence you ought to understand that [the gifts] formerly among your nation have been transferred to us. And just as there were false prophets contemporaneous with your holy prophets, so are there now many false teachers amongst us, of whom our Lord forewarned us to beware; so that in no respect are we deficient, since we know that He foreknew all that would happen to us after His resurrection from the dead and ascension to heaven.

For He said we would be put to death, and hated for His name’s sake; and that many false prophets and false Christs would appear in His name, and deceive many: and so has it come about. For many have taught godless, blasphemous, and unholy doctrines, forging them in His name; have taught, too, and even yet are teaching, those things which proceed from the unclean spirit of the devil, and which were put into their hearts.

Therefore we are most anxious that you be persuaded not to be misled by such persons, since we know that every one who can speak the truth, and yet speaks it not, shall be judged by God, as God testified by Ezekiel, when He said, “I have made you a watchman to the house of Judah. If the sinner sins, and you do not warn him, he himself shall die in his sin; but his blood will I require at you hand. But if you warn him, you will be innocent.” And on this account we are, through fear, very earnest in desiring to witness [with men] according to the Scriptures, but not from love of money, or of glory, or of pleasure. For no man can convict us of any of these [vices].