Henry Purcell's "Lord, How long wilt Thou be angry," featuring some of the most devastating dissonance ever written. (I detect definite strains of "Dido's Lament" in there. And playlist.)
Lord, how long wilt thou be angry?
Shall thy jealousy burn like fire for ever?
O remember not our old sins,
but have mercy upon us, and that soon,
for we are come to great misery.
Help us, O God of our salvation,
for the glory of thy name; O deliver us,
and be merciful unto our sins, for thy name’s sake.
So we that are thy people
and the sheep of thy pasture
shall give thee thanks for ever,
and will always be shewing forth thy praise
from one generation to another.
Attribution(s): "Bell Tower" (source) via CC BY-SA 4.0.