This text comes from Irish Melodies, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
How dear to me the hour when day-light dies,
And sunbeams melt along the silent sea.
"Oh! haste and leave this sacred isle,
"Unholy bark, ere morning smile;
"For on thy deck, tho' dark it be,
"A female form I see;
"And I have sworn this sainted sod
"Shall ne'er by woman's feet be trod!"
"Oh! Father, send not hence my bark,
"Through wint'ry winds and billows dark;
"I come with humble heart to share
"Thy morn and evening prayer;
"Nor mine the feet, oh! holy Saint,
"The brightness of thy sod to taint."
The Lady's prayer Senanus spurn'd;
The winds blew fresh, the bark return'd.
But legends hint, that had the maid
Till morning's light delay'd,
And given the saint one rosy smile,
She ne'er had left his lonely isle.