In the absence of circumstances which generate suspicion, every witness is to be presumed credible, until the contrary is shown; the burden of impeaching his credibility lying on the objector.
This rule serves to show the injustice with which the writers of the Gospels have ever been treated by infidels; and injustice silently acquiesced in even by Christians; in requiring the Christian affirmatively, and by positive evidence, aliunde, to establish the credibility of his witnesses above all others, before their testimony is entitled to be considered, and in permitting the testimony of a single profane writer, alone and uncorroborated, to outweigh that of any single Christian. This is not the course in courts of chancery, where the testimony of a single witness is never permitted to outweigh the oath even of the defendant himself, interested as he is in the cause; but, on the contrary, if the plaintiff, after having required the oath of his adversary, cannot overthrow it by something more than the oath of one witness, however credible, it must stand as evidence against him. But the Christian writer seems, by the usual course of the argument, to have been deprived of the common presumption of charity in his favor; and reversing the ordinary rule of administering justice in human tribunals, his testimony is unjustly presumed to be false, until it is proved to be true. This treatment, moreover, has been applied to them all in a body; and, without due regard to the fact, that, being independent historians, writing at different periods, they are entitled to the support of each other: they have been treated, in the argument, almost as if the New Testament were the entire production, at once, of a body of men, conspiring by a joint fabrication, to impose a false religion upon the world. It is time that this injustice should cease; that the testimony of the evangelists should be admitted to be true, until it can be disproved by those who would impugn it; that the silence of one sacred writer on any point, should no more detract from his own veracity or that of the other historians, than the like circumstance is permitted to do among profane writers; and that the Four Evangelists should be admitted in corroboration of each other, as readily as Josephus and Tacitus, or Polybius and Livy.
But if the burden of establishing the credibility of the evangelists were devolved on those who affirm the truth of their narratives, it is still capable of a ready moral demonstration, still capable of a ready moral demonstration, when we consider the nature and character of the testimony, and the essential marks of difference between true narratives of facts and the creations of falsehoods. It is universally admitted that the credit to be given to witnesses depends chiefly on their ability to discern and comprehend what was before them, their opportunities for observation, the degree of accuracy with which they are accustomed to mark passing events, and their integrity in relating them. The rule of municipal law on this subject embraces all these particulars, and is thus stated by a legal text- writer of the highest repute.
Dr Simon Greenleaf-One of Harvard's founders