Written c. 1680-82 although it is not known for what occasion. At this time Purcell was organist of both Westminster Abbey and the Chapel Royal so it may have been for either venue. The text is from Psalm 63, v1-5,8
O God, thou art my God : early will I seek thee.
My soul thirsteth for thee, my flesh also longeth after thee : in a barren and dry land where no water is.
Thus have I looked for thee in holiness : that I might behold thy power and glory.
For thy loving-kindness is better than the life itself : my lips shall praise thee.
As long as I live will I magnify thee on this manner : and lift up my hands in thy Name.
Because thou hast been my helper : therefore under the shadow of thy wings will I rejoice.
Hallelujah.

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