I. Preliminary Remarks. 1. A book is genuine if written by the man whose name it bears, or to whom it is ascribed; or when, as in the case of several books of the Old Testament, the author is unknown, it is genuine if written in the age and country to which it is ascribed. A book is authentic which is a record of facts as opposed to what is false or fictitious; and we call it credible when the record of facts which it professes to give is worthy of belief. Authenticity and credibility are, therefore, only different views of the same quality.
In the case of a book that deals mainly with principles, the question of authorship is of subordinate importance. Thus the book of Job, with the exception of the brief narratives with which it opens and closes, and which may belong to any one of several centuries, is occupied with the question of Divine providence. It is not necessary that we know what particular man was its author, or at what precise period he wrote. We only need reasonable evidence (as will be shown hereafter) that he was a prophetical man, writing under the guidance of the Holy Spirit. But the case of the gospel narratives is wholly different. They contain a record of the supernatural appearance and works of the Son of God, on the truth of which rests our faith in the gospel. So the apostle Paul reasons: "If Christ be not risen, then is our preaching vain, and your faith is also vain." 1 Cor. 15:14. It is, then, of vital importance that we know the relation which the authors of these narratives held to Christ. If they were not apostles or apostolic men, that is, associates of the apostles, laboring with them, enjoying their full confidence, and in circumstances to obtain their information directly from them—but, instead of this, wrote after the apostolic age—their testimony is not worthy of the unlimited faith which the church in all ages has reposed in it. The question, then, of the genuineness of the gospel narratives and that of their authenticity and credibility must stand or fall together.
2. In respect to the origin of the gospels, as also of the other books of the New Testament, the following things should be carefully remembered:
First. There was a period, extending, perhaps, through some years from the day of Pentecost, when there were no written gospels, their place being supplied by the living presence and teachings of the apostles and other disciples of our Lord.
Secondly. When the need of written documents began to be felt, they were produced, one after another, as occasion suggested them. Thus the composition of the books of the New Testament extended through a considerable period of years.
Thirdly. Besides the gospels universally received by the churches, other narratives of our Lord's life were attempted, as we learn from the evangelist Luke (1:1); but those never obtained general currency. The churches everywhere received the four gospels of Matthew, Mark, Luke, and John, because of the clear evidence which they had of their apostolic origin and trustworthiness; and because, also, these gospels, though not professing to give a complete account of our Lord's life and teachings, were nevertheless sufficiently full to answer the end for which they were composed, being not fragmentary sketches, but orderly narratives, each of them extending over the whole course of our Lord's ministry. The other narratives meanwhile gradually passed into oblivion. The general reception of these four gospels did not, however, come from any formal concert of action on the part of the churches, (as, for example, from the authoritative decision of a general council, since no such thing as a general council of the churches was known till long after this period;) but simply from the common perception everywhere of the unimpeachable evidence by which their apostolic authority was sustained.
The narratives referred to by Luke were earlier than his gospel. They were not spurious, nor, so far as we know, unauthentic; but rather imperfect. They must not be confounded with the apocryphal gospels of a later age.
3. In respect to the quotations of Scripture by the early fathers of the church, it is important to notice their habit of quoting anonymously, and often in a loose and general way. They frequently cite from memory, blending together the words of different authors, and sometimes intermingling with them their own words. In citing the prophecies of the Old Testament in an argumentative way, they are, as might have been expected, more exact, particularly when addressing Jews; yet even here they often content themselves with the scope of the passages referred to, without being particular as to the exact words.
With the above preliminary remarks, we proceed to consider the evidences, external and internal, for the genuineness of the gospel narratives.