Treasury of Scripture Knowledge

Summary

In that day shall this song be sung in the land of Judah; We have a strong city; salvation will God appoint for walls and bulwarks.

Bible References

This song

Ephesians 5:19
Speak to one another by using psalms, hymns and spiritual songs, singing and making music with your hearts to the Lord.
Revelation 19:1
After these things I heard what sounded like the loud voices of a huge crowd in heaven, shouting, "Hallelujah [which means, "Praise God"]! Salvation and splendor and power belong to our God.

Salvation

Matthew 16:18
And I also tell you, [although] you are Peter [i.e., a stone], it is on this rock [i.e., the truth you have just confessed] that I will build my church and [not even] the gates of the unseen place of departed spirits will win out over it [i.e., all efforts to stamp out the church by killing Christians will fail].
Revelation 21:12
It had a very high wall [around it], with twelve angels [stationed] at its twelve gates. The names written on the gates were those of the twelve tribes of the Israelites.