XVI. Arnobius and Lactantius (Lardner, vol. viii. p. 43, 201.), about the year 300, composed formal arguments upon the credibility of the Christian religion. As these arguments were addressed to Gentiles, the authors abstain from quoting Christian books by name, one of them giving this very reason for his reserve; but when they came to state, for the information of their readers, the outlines of Christ's history, it is apparent that they draw their accounts from our Gospels, and from no other sources; for these statements exhibit a summary of almost everything which is related of Christ's actions and miracles by the four evangelists. Arnobius vindicates, without mentioning their names, the credit of these historians; observing that they were eye-witnesses of the facts which they relate, and that their ignorance of the arts of composition was rather a confirmation of their testimony, than an objection to it. Lactantius also argues in defence of the religion, from the consistency, simplicity, disinterestedness, and sufferings of the Christian historians, meaning by that term our evangelists. XVII. We close the series of testimonies with that of Eusebius, (Lardner, vol. viii. p. 33.) bishop of Caesarea who flourished in the year 315, contemporary with, or posterior only by fifteen years to, the authors last cited. This voluminous writer, and most diligent collector of the writings of others, beside a variety of large works, composed a history of the affairs of Christianity from its origin to his own time. His testimony to the Scriptures is the testimony of a man much conversant in the works of Christian authors, written during the first three centuries of its era, and who had read many which are now lost. In a passage of his Evangelical Demonstration, Eusebius remarks, with great nicety, the delicacy of two of the evangelists, in their manner of noticing any circumstance which regarded themselves; and of Mark, as writing under Peter's direction, in the circumstances which regarded him. The illustration of this remark leads him to bring together long quotations from each of the evangelists: and the whole passage is a proof that Eusebius, and the Christians of those days, not only read the Gospels, but studied them with attention and exactness. In a passage of his ecclesiastical History, he treats, in form, and at large, of the occasions of writing the four Gospels, and of the order in which they were written. The title of the chapter is, "Of the Order of the Gospels;" and it begins thus: "Let us observe the writings of this apostle John, which are not contradicted by any: and, first of all, must be mentioned, as acknowledged by all, the Gospel according to him, well-known to all the churches under heaven; and that it has been justly placed by the ancients the fourth in order, and after the other three, may be made evident in this manner."--Eusebius then proceeds to show that John wrote the last of the four, and that his Gospel was intended