John Gill Commentary 1 Kings 8:28

"Yet have thou respect unto the prayer of thy servant, and to his supplication, O Jehovah my God, to hearken unto the cry and to the prayer which thy servant prayeth before thee this day;" — 1 Kings 8:28 (ASV)

Yet have you respect to the prayer of your servant, and to his
supplication, O Lord my God
Meaning himself, who, though a king acknowledged himself, and esteemed it an honour to be the servant of the Lord, and who was also an humble suppliant of his, and desired his prayers and supplications might be attended to:

to hearken unto the cry and to the prayer which your servant prays
before you this day ;
the particulars of which follow.