Extant New Testament manuscripts are from the late Ante-Nicene Period rather than the Apostolic Age. R. J. Wilkinson wrote that there are authors "wish to promote or prohibit a devotional or liturgical use of the Tetragrammaton or hold strong views about its pronunciation and meaning" and in a footnote he cite to D. Fontaine and P. D. Vasileiadis. R. J. Wilkinson declare that D. Fontaine follows the belief that he "regards the eclipse of the name as a part of a Satanic strategy and belief... that Tetragrammaton appear in early New Testament texts", and "consider that Christian apostasy from the practice and teaching of the original disciples led to hostilly to the Tetragrammaton and its removal to the New Testament." P. D. Vasileiadis avouch that: "Following a similar procedure with the Greek copies of the Hebrew Scriptures, it is probable that the insertion of kyrios into the Greek text of the Christian Scriptures in places where the Tetragrammaton originally might have stood was a matter of time".