Luke 21:8

Tertullian Against Marcion Book IV

) comes in a name which belongs to another-unless it was his business to warn off from a mendaciously assumed name the disciples (of One) who, by reason of His name being properly given to Him, possessed also the verity thereof. But when "they shall by and by come and say, I am Christ,"[1536]

Tertullian Against Marcion Book V

No one is at once a proposer and a seconder to himself. Besides, you have read, no doubt, that "many shall come, saying, I am Christ."[23]

Dubious Hippolytus Fragments

But when ye shall hear of wars and commotions, be not terrified: for these things must first come to pass; but the end is not yet by and by."[29]

Dubious Hippolytus Fragments

but go not after them.[36]

Alexander Epistles on the Arian Heresy

Moreover, concerning these very men, warnings are not wanting to us, for the Lord foretold: "Take heed that ye be not deceived: for many shall come in My flame, saying, I am Christ; and the tithe draweth near: go ye not therefore after them."[63]