Robert Hatch Kennett,
1911 Encyclopædia Britannica
(1911)
“ The hymns which had brought comfort to the faithful in the time of their distress had become an integral part of their religion which could not be given up. Jerusalem was now the religious metropolis of a great nation, and accordingly it was felt desirable that the hymn-books of the several parts of the nation should be combined into a hymn-book for the whole. The synagogue collections, since they contained psalms which at this time were probably considered to be the work of David, were placed first, and the Temple collection added to them. ”
