Ether 2:20

And the Lord said unto the brother of Jared:

“Behold, thou shalt make a hole in the top, and also in the bottom; and when thou shalt suffer for air thou shalt unstop the hole and receive air. And if it be so that the water come in upon thee, behold, ye shall stop the hole, that ye may not perish in the flood.”

From section: Shipbuilding Struggles in the Wilderness

From page: Jaredite Era