To the chief Musician. See App-64. Having been written for the marriage of Hezekiah, the Psalm was handed over for public use, as the glorious antitype of the marriage of Messiah in a yet future day (Rev_19:7-9)
for the sons, &c. See note on Title, above. This and Psalm 87 are the only two Psalms where the Title is given at the beginning as well as the end. These two Psalms are for a good reason thus discriminated.