"Immortal, Invisible, God Only Wise" is a Christian hymn with words by the Free Church of Scotland minister, Walter Chalmers Smith, usually sung to the tune, "St. Denio", originally a Welsh ballad tune, which became a hymn (under the name "Palestrina") in Caniadau y Cyssegr ("Hymns of the Sanctuary", 1839) edited by John Roberts (Welsh bardic name: Ieuan Gwyllt) (1822–1877).

[1][2] Of this hymn, musicologist Erik Routley has written: "[Immortal, Invisible] should give the reader a moment's pause.

"[3]Lyrics given in most English hymnals: Immortal, invisible, God only wise, In light inaccessible hid from our eyes, Most blessèd, most glorious, the Ancient of Days, Almighty, victorious, thy great Name we praise.

Great Father of glory, pure Father of light, Thine angels adore thee, all veiling their sight; All laud we would render: O help us to see ’Tis only the splendour of light hideth thee.

Great Father of glory, pure Father of light, Thine angels adore Thee, all veiling their sight; But of all Thy rich graces this grace, Lord, impart Take the veil from our faces, the vile from our heart.