“We would be surprised indeed not to find the Christ, who is present everywhere in the Old Testament, also in the Psalms, the best beloved book of the Hebrews. In it we find the sincerest and highest expression of their religious experience, and of both national and individual yearning. In this book the believing and hoping Israelite of old has exposed to us the inmost secrets of his heart. It was the hymn book of the nation, in which they mingled their hearts and voices in the expression of religious emotions common to them all. Would we see the faith of the Hebrews at its clearest and best, then we turn instinctively to the outpouring of their hearts in the Psalms.” — Edward Mack, The Christ of the Old Testament: Studies in the Beginnings and Growth of Messianic Prophecy (1926), p. 75