'Elder' in the Bible

Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born.

And the LORD said unto her, Two nations are in thy womb, and two manner of people shall be separated from thy bowels; and the one people shall be stronger than the other people; and the elder shall serve the younger.

And these words of Esau her elder son were told to Rebekah: and she sent and called Jacob her younger son, and said unto him, Behold, thy brother Esau, as touching thee, doth comfort himself, purposing to kill thee.

And Laban had two daughters: the name of the elder was Leah, and the name of the younger was Rachel.