I am the voice of one crying [Greek: ego phonae boontos] in the wilderness,' &c.
The passage in Justin does not profess to be a direct quotation; it is merely a historical reproduction, and, as such, it has quite as much accuracy as we should expect to find.

The circumstantial coincidences are too close to be the result of accident.

And Dr.
Keim is doubtless right in ridiculing Volkmar's notion that Justin has merely developed Acts xiii.

25, which contains neither of the two phrases ([Greek: ho Christos, phonae boontos]) in question.

To refer the passage to an unknown source such as the Gospel according to the Hebrews--all we know of which shows its affinities to have been rather on the side of the Synoptics--when we have a known source in the fourth Gospel ready to hand, is quite unreasonable [Endnote 280:1].
No great weight, though perhaps some fractional quantity, can be ascribed to the statement that Jesus healed those who were maimed from their birth ([Greek: tous ek genetaes paerous] [Endnote 280:2]).