'Whereon' in the Bible

Behold, thou trustest upon the staff of this bruised reed, even upon Egypt, whereon if a man lean, it will go into his hand, and pierce it: so is Pharaoh king of Egypt to all that trust on him.

behold, I will cause the shadow on the steps, which is gone down on the dial of Ahaz with the sun, to return backward ten steps. So the sun returned ten steps on the dial whereon it was gone down.