Verses 1-7
Psalm 87 Citizens of God's city
This psalm looks forward to the gathering of people of all nations into Zion, the city of God. It is a picture of God's gracious act in welcoming all who want to be his people, regardless of their nationality (cf. Matthew 8:11; Matthew 28:19; Galatians 3:28; Galatians 4:26; Ephesians 2:13-19; Revelation 21:22-24).
God loves his city, the place where he dwells among his people (1-3). He brings men and women from former enemy nations and places them in his city (4). He gives them equal rights as his children along with the faithful of Israel and those of other, far off nations (5-6). All the faithful rejoice together in the refreshment and delight of God's city (7).