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.
By the light of the moon,
The bonnie harvest moon,
On the beautiful banks of the Clyde,
I have wander'd along,
And sung the Highland song
Which my sire oft sang by his own burn-side.
For, though born ayont the Tweed,
I love the meanest weed
That has sprung by the heather in its pride;
And earth owns no dearer spot
Than the ivy-mantled cot,
Where the moments lightly pass with my bonnie Lowland bride.
Caledonia, with thee,
My bosom boundeth free;
And, wherever my footsteps may roam,
The lowland valley still,
Or the heather-blooming hill,
Shall the dear haven be of my heart's best home.
To that loved and gentle form,
Which hath braved me with life's storm,
I will sing of our cottage by the Clyde,
Till the joyous smile she wore,
In the happy days of yore,
Shall beam upon the brow of my bonnie Lowland bride.