Do my ears fail me? When I listen to Salvation by The Cranberries, I hear "Tie your kids unto their beds..." but the lyrics I found on the net say "Tie your kids home to their beds". However, when I read Dolores' lips I don't see her say "home".
you could look up their live recordings and see if it gets more clear in concert, but enunciation was never her strong point (neither were vocals themselves or lyrics, but that one was particularly awf.)
I'm not a native English speaker so the song is a bit of a challenge in some parts, but you can watch the music video on Youtube and read her lips; It sounds and looks like "unto" to me; not "home".