This text comes from Irish Melodies, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Come, send round the wine, and leave points of belief
To simpleton sages, and reasoning fools;
This moment's a flower too fair and brief,
To be wither'd and stain'd by the dust of the schools.
Your glass may be purple, and mine may be blue,
But, while they are filled from the same bright bowl,
The fool, who would quarrel for difference of hue,
Deserves not the comfort they shed o'er the soul.
Shall I ask the brave soldier, who fights by my side
In the cause of mankind, if our creeds agree?
Shall I give up the friend I have valued and tried,
If he kneel not before the same altar with me?
From the heretic girl of my soul shall I fly,
To seek somewhere else a more orthodox kiss?
No! perish the hearts, and the laws that try
Truth, valour or love by a standard like this!