This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Scots, wha hae wi' Wallace bled,
Scots, wham Bruce has aften led;
Welcome to your gory bed,
Or to glorious victorie.
Now's the day, and now's the hour;
See the front o' battle lower;
See approach proud Edward's power—
Edward! chains and slaverie!
Wha will be a traitor knave?
Wha can fill a coward's grave?
Wha sae base as be a slave?
Traitor! coward! turn and flee!
Wha for Scotland's King and law
Freedom's sword will strongly draw,
Free-man stand, or free-man fa'?
Caledonian! on wi' me!
By oppression's woes and pains!
By your sons in servile chains!
We will drain our dearest veins,
But they shall—they shall be free!
Lay the proud usurpers low!
Tyrants fall in every foe!
Liberty's in every blow!
Forward! let us do, or die!