'Stone' in the Bible

A gift is a precious stone in the eyes of the possessor: whithersoever it turneth it prospereth.

and lo, it was all grown over with thistles, and nettles had covered the face thereof, and its stone wall was broken down.

Whoso diggeth a pit shall fall therein; and he that rolleth a stone, it shall return upon him.

A stone is heavy, and the sand weighty; but a fool's vexation is heavier than them both.