i.e. Early, come to thee, before the ordinary time of morning prayer, or before the dawning of the day, or the rising of the sun. The sense is, Though I have hitherto got no answer to my prayers, yet I will not give over praying nor hoping for an answer.
Related Commentaries of Psalms 88:13
Psalms 88:13
13 But unto thee have I cried, O LORD; and in the morning shall my prayer prevent thee.