As the dawn is ushered in by the notes of birds, so the rising of the Sun of Righteousness was heralded by song, Mary and Zacharias brought their praises and welcome to the unborn Christ, the angels hovered with heavenly music over His cradle, and Simeon took the child in his arms and blessed it. The human members of this choir may be regarded as the last of the psalmists and prophets, and the first of Christian singers. The song of Zacharias, from which my text is taken, is steeped in Old Testament allusions, and redolent of the ancient spirit, but it transcends that. Its early part is purely national, and hails the coming of the Messiah chiefly as the deliverer of Israel from foreign oppressors, though even in it their deliverance is regarded mostly as the means to an end, and the end one very appropriate on the lips of a priestly prophet---viz. sacerdotal service by the whole nation 'in holiness and righteousness all their days.' But in this latter portion, which is separated from the former by the pathetic, incidental, and slight reference to the singer's own child, the national limits are far surpassed. The song soars above them, and pierces to the very heart and kernel of Christ's work. 'The dayspring from on high hath visited us, to give light to them that sit in darkness and the shadow of death, to guide our feet into the way of peace.' Nothing deeper, nothing wider, nothing truer about the mission and issue of Christ's coming could be spoken. And thus we have to look at the three things that lie in this text, as bearing upon our conceptions of Christ and His work--the darkness, the dawn, and the directing light. I. The darkness. Zacharias, as becomes the last of the prophets, and a man whose whole religious life was nourished upon the ancient Scriptures, speaks almost entirely in Old Testament phraseology in this song. And his description of 'them that sit in darkness and the shadow of death' is taken almost verbally from the great words from the Book of the Prophet Isaiah, who speaks, in immediate connection with his prophecy of the coming of the Christ, of 'the people that walk in darkness and them that dwell,' or sit, 'in the shadow of death, upon whom the light hath shined.' The picture that rises before us is that of a group of travellers benighted, bewildered, huddled together in the dark, afraid to move for fear of pitfalls, precipices, wild beasts, and enemies; and so sighing for the day and compelled to be inactive till it comes. That is the picture of humanity apart from Jesus Christ, a darkness so intense, so tragic, that it is, as it were, the very shadow of the ultimate and essential darkness which is death, and in it men are sitting torpid, unable to find their way and afraid to move.