The Geneva Bible Translation Notes, , at sacred-texts.com
psa 87:1"A Psalm [or] Song for the sons of Korah." His (a) foundation [is] in the holy mountains.
(a) God chose that place among the hills to establish Jerusalem and his temple.
psa 87:3(b) Glorious things are spoken of thee, O city of God. Selah.
(b) Though your glorious estate does not yet appear, wait with patience and God will accomplish his promise.
psa 87:4I will make mention of (c) Rahab and Babylon to them that know me: behold Philistia, and Tyre, with Ethiopia; (d) this [man] was born there.
(c) That is, Egypt and these other countries will come to the knowledge of God.
(d) It will be said of him who is regenerate and come to the Church, that he is as one who was born in the Church.
psa 87:5And of Zion it shall be said, (e) This and that man was born in her: and the highest himself shall establish her.
(e) Out of all quarters they will come to the Church, and be counted as citizens.
psa 87:6The LORD shall count, when he (f) writeth up the people, [that] this [man] was born there. Selah.
(f) When he calls them by his word into the Church, whom he had elected and written in the book.
psa 87:7As well the singers as the players on instruments [shall be there]: all my (g) springs [are] in thee.
(g) The prophet sets his whole affections and comfort in the church.