O cenwch fawl i'r Arglwydd nef

O cenwch fawl i'r Arglwydd nef,
  Moliennwch ef, genedloedd;
Molwch ei enw ef trwy'r byd,
  Chwithau i gyd y bobloedd.

Am ei fod ini yn dda iawn,
  Yr Arglwydd llawn trugaredd:
A'i air ef sydd yn parhau byth,
  Sef ei ddilyth wirionedd.

O sing praise to the Lord of heaven,
  Extol him, nations;
Praise his name throughout the world,
  All ye peoples.

For he is to us very good,
  The Lord full of mercy:
And his word shall endure forever,
  That is, his unfailing truth.

1 With cheerful notes let all the earth
    to heav'n their voices raise;
  Let all, inspired with godly mirth,
    sing solemn hymns of praise.

2 God's tender mercy knows no bound,
    his truth shall ne'er decay:
  Then let the willing nations round
    their grateful tribute pay.