(3) We have no positive evidence of the presence of this passage in any non- extant Gospel.

(4) Arguments from the manner of quoting the Old Testament to the manner of quoting the New must always be to a certain extent _a fortiori_, for it is undeniable that the New Testament did not as yet stand upon the same footing of respect and authority as the Old, and the scarcity of MSS.

must have made it less accessible.

In the case of converts from Judaism, the Old Testament would have been largely committed to memory in youth, while the knowledge of the New would be only recently acquired.

These considerations seem to favour the hypothesis that Clement is quoting from our Gospels.
But on the other hand it may be urged, (1) that the parallel adduced by Dr.Lightfoot, the story of Rahab, is not quite in point, because it is narrative, and narrative both in Clement and the other writers of his time is dealt with more freely than discourse.