From the sheet music at the National Library of Australia:


WHILE THE BRITISH BULL-DOG'S WATCHING AT THE DOOR
Written, composed, and sung by Harry Lauder.
Melbourne: Allan & Co., ©1915.

1. It's a dear old land is the Motherland, and when she sounds the call,
Her boys in her far-off other lands obey it, one and all.
For it is ev'ry Briton's duty to do what he can do
To defend our British Empire, to stand and see her through.

CHORUS: For it's a dear old land, is the Motherland; her sons are ever true.
Her boys in her far-off other lands will see her through and through.
It's a dear old home is the Homeland; it's as good as in days of yore.
We are steady, aye, and ready, while the British bull-dog's watching at the door.

2. It's a peaceful land is the Motherland; we never want to fight,
But shoulder to shoulder we ever stand for ev'rything that's right.
It's a dear old Home is the Homeland; we love her more and more.
We'll fight the German might down as we've never done before.

3. It's a grand old home, is the Homeland; then let us pledge that we
Will all fight for our Motherland, that Britons shall be free,
That the glory of our Empire from us will never fade,
And that we'll defend for ever the land our fathers made.