"And the lion shall lie down with the lamb…”

Although a misquote from the bible....it was a wolf and a lamb....we can hope peace....

Isaiah 65:25

"The wolf and the lamb shall graze together; the lion shall eat straw like the ox, and dust shall be the serpent's food. They shall not hurt or destroy in all my holy mountain," says the Lord.
As you can see, the lamb is both times paired with the wolf and the lion is paired with a beast of burden (once with calves and another with the ox). Still, the meaning behind the imagery is not really done damage by switching the juxtaposition to include lions and lambs. One can see with little trouble how the image became as widely popular as it has.