Oh man, I almost forgot this classic:

Ye watchers and ye holy ones,
Bright seraphs, cherubim and thrones,
Raise the glad strain, Alleluia!
Cry out, dominions, princedoms, powers,
Virtues, archangels, angels’ choirs:
Alleluia! Alleluia!
Alleluia! Alleluia!
Alleluia!

O higher than the cherubim,
More glorious than the seraphim,
Lead their praises, Alleluia!
Thou bearer of th’eternal Word,
Most gracious, magnify the Lord.
Alleluia! Alleluia!
Alleluia! Alleluia!
Alleluia

Respond, ye souls in endless rest,
Ye patriarchs and prophets blest,
Alleluia! Alleluia!
Ye holy twelve, ye martyrs strong,
All saints triumphant, raise the song.
Alleluia! Alleluia!
Alleluia! Alleluia!
Alleluia

O friends, in gladness let us sing,
Supernal anthems echoing,
Alleluia! Alleluia!
To God the Father, God the Son,
And God the Spirit, Three in One.
Alleluia! Alleluia!
Alleluia! Alleluia!
Alleluia