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.
At setting day and rising morn,
With soul that still shall love thee,
I'll ask of heaven thy safe return,
With all that can improve thee.
I'll visit oft the birken bush,
Where first thou kindly told me
Sweet tales of love, and hid my blush,
Whilst round thou didst enfold me.
To all our haunts I will repair,
By greenwood, shaw, or fountain;
Or where the summer day I'd share
With thee upon yon mountain.
There will I tell the trees and flowers,
From thoughts unfeign'd and tender,
By vows you're mine, by love is yours
A heart which cannot wander.