Ai am y drwg a wneuthym i?

Ai am y drwg a wneuthym i,
  Fy Arglwydd cu a laddwyd!
Llid nef dywalltwyd
    ar Fab Duw,
  A'i enaid gwiw gystuddiwyd.

Ior grasol, maddeu 'meiau i,
  Ni chlwyfaf di ond hyny;
O'm calon ewch bechodau mwy,
  Fy Iesu wyf am garu.

Rho nefol arfau im' fy Ior,
  O'th raslawn drysor uchod;
Cyhoeddaf ryfel tra b'wyf byw
  Yn erbyn pob rhyw bechod.

gwelir: Oddiar fy llygaid aeth y llen

Was it for the evil I did,
  That my dear Lord was slain?
The wrath of heaven was poured
    on the Son of God,
  And his worthy soul was afflicted.

Gracious Lord, forgive my faults,
  I will injure thee no more;
From my heart go ye sins evermore,
  'Tis my Jesus I want to love.

Grant heavenly weapons to me, my Lord,
  From thy gracious treasure above;
I will declare war while ever I live
  Against every kind of sin.

Was it for crimes that I had done
  My dearest Lord was slain,
When justice seized
    God's only Son,
  And put His soul to pain?

Forgive my guilt, O Prince of peace,
  I'll wound my God no more;
Hence from my heart, ye sins, begone,
  For Jesus I adore.

Furnish me, Lord, with heav'nly arms
  From grace's magazine,
And I'll proclaim eternal war
  With every darling sin.