The summons to praise the King with a new song (Psalm xcvi.) is followed by this psalm, which repeats the dominant idea of the group, "Jehovah is King," but from a fresh point of view. It represents His rule under the form of a theophany, which may possibly be regarded as the fuller description of that coming of Jehovah to judgment with which Psalm xcvi. closes. The structure of both psalms is the same, each being divided into four strophes, normally consisting of three verses each, though the last strophe of Psalm xcvi. runs over into four verses. In this psalm, the first group of verses celebrates the royal state of the King (vv. 1-3); the second describes His coming as a past fact (vv. 4-6); the third portrays the twofold effects of Jehovah's appearance on the heathen and on Zion (vv. 7-9); and the last applies the lessons of the whole to the righteous, in exhortation and encouragement (vv. 10-12). The same dependence on earlier psalms and prophets which marks others of this group is obvious here. The psalmist's mind is saturated with old sayings, which he finds flashed up into new meaning by recent experiences. He is not "original," and does not try to be so; but he has drunk in the spirit of his predecessors, and words which to others were antiquated and cold blaze with light for him, and seem made for his lips. He who reads aright the solemn significance of to-day will find it no less sacred than any past, and may transfer to it all which seers and singers have said and sung of Jehovah's presence of old. The first strophe is mosaic-work. Ver. 1 (_lands_=_isles_) may be compared with Isa. xlii. 10, li. 5. Ver. 2_a_ is from Exod. xix. 9, 16, etc., and Psalm xviii. 9. Ver. 2_b_ is quoted from Psalm lxxxix. 14. Ver. 3_a_ recalls Psalms l. 3 and xviii. 8. The appearance of God on Sinai is the type of all later theophanies, and the reproduction of its principal features witnesses to the conviction that that transient manifestation was the unveiling of permanent reality. The veil had dropped again, but what had been once seen continued always, though unseen; and the veil could and would be drawn aside, and the long-hidden splendour blaze forth again. The combination of the pieces of mosaic in a new pattern here is striking. Three thoughts fill the singer's mind. God is King, and His reign gladdens the world, even away out to the dimly seen lands that are washed by the western ocean. "The islands" drew Isaiah's gaze. Prophecy began in him to look seawards and westwards, little knowing how the course of empire was to take its way thither, but feeling that whatever lands might lie towards the setting sun were ruled, and would be gladdened, by Jehovah.