This text comes from The Book of Scottish Song, edited by Alexander Whitelaw, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
O, my luve's like a red red rose,
That's newly sprung in June;
O, my luve's like the melodie,
That's sweetly play'd in tune.
As fair art thou, my bonnie lass,
Sae deep in love am I;
And I will love thee still, my dear,
Till a' the seas gang dry.
Till a' the seas gang dry, my dear,
And the rocks melt wi' the sun;
I will love thee still, my dear,
While the sands o' life shall run.
And fare thee weel, my only luve,
And fare thee weel a while!
And I will come again, my luve,
Though it were ten thousand mile.