O holiest Truth! how have I lied to Thee!

I vow'd this day Thy sacrifice to be;

But I am dim ere night.

Surely I made my prayer, and I did deem

That I could keep in me Thy morning beam,

Immaculate and bright.

But my foot slipp'd; and, as I lay, he came,

My gloomy foe, and robb'd me of heaven's flame.

Help Thou my darkness, LORD, till I am light.