Back during the 19th century, 10 in 1 medicine shows would frequently have a lion and lamb in the same cage as a demonstration of the "biblical" verse. (No such verse, by the way.)
As I said, don't ask about the lamb's future.
Isaiah 11:6”5Righteousness will be the belt around His hips, and faithfulness the sash around His waist. 6The wolf will live with the lamb, and the leopard will lie down with the goat; the calf and young lion and fatling will be together, and a little child will lead them. 7The cow will graze with the bear, their young will lie down together, and the lion will eat straw like the ox.…”
There is a verse that does say it... but it is more of a animal “group” thing as above! A wolf lies with a lamb, a leopard lies down with a goat and a young lion hangs out with a young cow and they are all hanging out together as the cute little human child cub pretends to be their boss. The verse speaks of the spiritual contentment that God will bring to the Earth during Messiah’s rule out of Jerusalem in the millennium!