'Multiply' in the Bible

Or if someone touches any [ceremonially] unclean thing—whether the carcass of an unclean wild animal or the carcass of an unclean domestic animal or the carcass of unclean creeping things—even if he is unaware of it, he has become unclean, and he will be guilty.

‘These also are unclean to you among the swarming things that crawl around on the ground [and multiply profusely]: the mole, the mouse, and any kind of great lizard,