'Representing' in the Bible

Moses wrote down all the words of the Lord. Then he got up early in the morning, and built an altar [for worship] at the foot of the mountain with twelve pillars (memorial stones) representing the twelve tribes of Israel.

You are to put the two stones on the shoulder pieces of the ephod as stones of remembrance representing the sons of Israel, and Aaron is to carry their names into the LORD's presence on his two shoulders as a memorial.