From the latter part of the fourth century, a still beardless Christ begins to be depicted seated on a throne on a dais, often with his feet on a low stool and usually flanked by Saints Peter and Paul, and in a larger composition the other apostles. The central group of the Sarcophagus of Junius Bassus of 359 (Vatican) is the earliest example with a clear date. In some cases Christ hands a scroll to St Peter on his right, imitating a gesture often made by Emperors handing an Imperial decree or letter of appointment to an official, as in ivory consular diptychs, on the Arch of Constantine, and the Missorium of Theodosius I. This depiction is known as the Traditio legis ("handing over the law"), or "Christ the lawgiver" – "the apostles are indeed officials, to whom the whole world is entrusted" wrote Saint John Chrysostom. This depiction tends to merge into one of "Christ the teacher", which also derives from classical images of bearded philosophers.