John Gill Commentary Psalms 45:12

"And the daughter of Tyre [shall be there] with a gift; The rich among the people shall entreat thy favor." — Psalms 45:12 (ASV)

And the daughter of Tyre [shall be there] with a gift
That is, among the honourable women in the king's court and palace: it is a prophecy of the conversion of the Tyrians, and their admission into a Gospel church, state, which had its accomplishment in the times of Christ and his apostles, (Mark 7:24) (3:8) (Acts 21:3Acts 21:4) ; compare with this (Psalms 87:4) ; and though Tyre is only mentioned, it being, as Kimchi on this place observes, near to the land of Judea; yet all other Gentiles are meant, to whom the Gospel should come to the conversion of them, and thereby become members of churches;

where they are "with a gift", of themselves to the churches; see (2 Corinthians 8:5) ; joining themselves to them, to walk with them, and serve the Lord with one consent; and with the gift or offering of praise and thanksgiving, for the grace and blessings of it bestowed upon them; and with a free donation out of their substance, to support a Gospel church state, its ministers, and the interest, of religion; see (Isaiah 23:18) ; the allusion may be to (Exodus 23:15) ;

[even] the rich among the people shall entreat thy favour ;
either such as are rich, in a literal sense, both among the inhabitants of Tyre, who were a very wealthy people, (Isaiah 23:8) ; and among other Gentiles, especially in the latter day, when kings shall be the church's nursing fathers, and bow down to her, (Isaiah 49:23) ; or such who are so in a spiritual sense, enriched by Christ with all spiritual blessings, and who are particularly rich in faith, and heirs of a kingdom;

these shall "entreat [the] favour" of the queen the church; not pray unto her, or worship her in a religious way; for God is only the object of such worship; but do those things by which they would show that they valued her friendship, and would gain her good will; as also acknowledge any former injury done her by them, and entreat her forgiveness; and particularly desire to have communion with her, and share in her prayers.