Tyr'd Ysbryd Sanctaidd dangos rym

Tyr'd Ysbryd Sanctaidd, dangos rym
  Dy nerthol lym wirionedd,
Rho rasol fendith yma'n awr
  I fwrw i lawr anwiredd.

Rho ddawn a goleu
    Arglwydd Iôr
  I draethu'r cynghor dwyfol;
Ac agor di y galon gau,
  I dderbyn d'eiriau nefol.

Perffeithia, Iôr, dy nerth
    sydd fawr
  Yn ngwyneb dirfawr wendid,
Rho i'r newynog, tlawd, a chaeth,
  Ysbrydol faeth a rhyddid.

Wel dyro eto gymorth rhwydd
  O Arglwydd yr arglwyddi;
Lle'r amlhäodd pechod cas,
  Gwna di i'th ras ragori.

gwelir:
  Aglwydd Dduw'r Hwn bïa(u)'r waith
  Rho ddawn a goleu Arglwydd Iôr
  Wel dyro eto gymhorth rhwydd

Come Holy Spirit, show the force
  Of thy strong, sharp truth,
Give a gracious blessing here now
  To cast down untruth.

Give the gift and light
    of the Sovereign Lord
  To expound the divine counsel;
And open thou the closed heart,
  To receive thy heavenly words.

Perfect, Lord, thy strength
    which is great
  In the face of enormous weakness,
Give to the starving, poor, and captive,
  Spiritual nourishment and freedom.

So give again free help
  O Lord of lords;
Where hated sin has multiplied,
  Make thou thy grace triumph.