Justin Martyr, dialogue with Trypho the Jew:
But since what follows indicates that the reference is to Christ (for it is, 'and He shall be the expectation of nations'), I do not proceed to have a mere verbal controversy with you, as I have not attempted to establish proof about Christ from the passages of Scripture which are not admitted by you, which I quoted from the words of Jeremiah the prophet, and Esdras, and David; but from those which are even now admitted by you, which had your teachers comprehended, be well assured they would have deleted them, as they did those about the death of Isaiah, whom you sawed asunder with a wooden saw. And this was a mysterious type of Christ being about to cut your nation in two, and to raise those worthy of the honor to the everlasting kingdom along with the holy patriarchs and prophets;
Origen of Alexandria, Letter from Origen to Africanus, chapter 9:
For the author of the Epistle to the Hebrews, in speaking of the prophets, and what they suffered, says, They were stoned, they were sawn asunder, they were slain with the sword To whom, I ask, does the sawn asunder refer (for by an old idiom, not peculiar to Hebrew, but found also in Greek, this is said in the plural, although it refers to but one person)? Now we know very well that tradition says that Esaias the prophet was sawn asunder; and this is found in some apocryphal work, which probably the Jews have purposely tampered with, introducing some phrases manifestly incorrect, that discredit might be thrown on the whole.
Tertullian, Book 3, Of The Harmony of the Fathers of the Old and New Testaments:
His limbs, after his death, already
hid
In sepulcher, did touch, he - light
recalled
Revived ISAIAH, wealthy seer, to
whom
The fount was oped, - so manifest
his faith!
Poured form his mouth God's word
forth.
Promised was
The Father's will, bounteous
through Christ; through him
It testified before the way of life,
And was approved: but him, though
stainless found,
And undeserving, the mad People cut
With wooden saw in twain, and took
away.