It is much more probable that he would overlook real analogies than be led astray by merely imaginary ones--which is rather a modern form of error.

In textual matters the ancients were not apt to go wrong through over-subtlety, and Eusebius himself does not, I believe, deserve the charge of 'inaccuracy and haste' that is made against him [Endnote 278:1].
* * * * * In regard to the much disputed question of the use of the fourth Gospel by Justin, those who maintain the affirmative have again emphatic support from Dr.Keim [Endnote 278:2].

We will examine some of the instances which are adduced on this side.
And first, in his account of John the Baptist, Justin has two particulars which are found in the fourth Gospel and in no other.
That Gospel alone makes the Baptist himself declare, 'I am not the Christ;' and it alone puts into his mouth the application of the prophecy of Isaiah, 'I am the voice of one crying in the wilderness.' Justin combines these two sayings, treating them as an answer made by John to some who supposed that he was the Christ.
_Justin, Dial_.c.

88.
To whom he himself also cried: 'I am not the Christ, but the voice of one crying [Greek: ouk eimi o Christos, alla phonae boontos]; for there shall come one stronger than I,' &c.
_John_ i.

19, 20, 23.
And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who art thou?
And he confessed, and denied not: but confessed, I am not the Christ [Greek: oti ouk eimi ego o Christos]...