Numbers 16:30; Numbers 16:33

30 "But if the LORD brings about an entirely new thing and the ground opens its mouth and swallows them up with all that is theirs, and they descend alive into Sheol, then you will understand that these men have spurned the LORD ."

33 So they and all that belonged to them went down alive to Sheol; and the earth closed over them, and they perished from the midst of the assembly.