'Didst' in the Bible

For Thou didst make of a city a heap, Of a fenced city a ruin, A high place of strangers from being a city, To the age it is not built.

Didst Thou not rend the heavens? Thou didst come down, From thy presence did mountains flow,

In Thy doing fearful things -- we expect not, Thou didst come down, From Thy presence did mountains flow.