John Trapp on Psalms 102:22

Verſ. 22. When the people are gathered together] ſc. to the Lord Chriſt; For to Shil[illegible: 2 letters] ſhall be the gathering of the people, Gen. 49.10.

And the Kingdoms to ſerve the Lord] As they did under Conſtantine the Great, Valentinian, Theodoſius, which three Emperors called themſelves, Vaſalles Chriſti (as Socrates reporteth) the Vaſſals of Chriſt: And the like may be ſaid of other Chriſtian Kings and Princes ſince, who have yeelded profeſſed ſubjection to the Goſpel, and caſt their Crowns at Chriſts feet.