Duw llanw ein calon ni a nerth

Duw, llanw ein calon ni a nerth,
  Yn helaeth iawn bob awr,
I 'nabod hyd a llęd a gwerth
  Dy iachawdwriaeth fawr.

Gogoniant fyth i'r hwn a ro'es
  Ei enaid drosom ni;
A'i gorph yn aberth ar y groes
  Ar fynydd Calfari.

God, flood our heart with strength,
  Very generously every hour,
To know the length and breadth and worth
  Of thy great salvation.

Glory forever to him who gave
  His soul for us;
And his body as a sacrifice on the cross
  On the mount of Calvary.