'Elder' in the Bible

The firstborn said to the younger, “Our father is aging, and there is not a man on earth [available] to be intimate with us in the customary way [so that we may have children].

The Lord said to her,“[The founders of] two nations are in your womb;And the separation of two nations has begun in your body;The one people shall be stronger than the other;And the older shall serve the younger.”

Now when Isaac was old and his eyes were too dim to see, he called his elder [and favorite] son Esau and said to him, “My son.” And Esau answered him, “Here I am.”

Then Rebekah took her elder son Esau’s best clothes, which were with her in her house, and put them on Jacob her younger son.

When these words of her elder son Esau were repeated to Rebekah, she sent for Jacob her younger son, and said to him, “Listen carefully, your brother Esau is comforting himself concerning you by planning to kill you.

Now Laban had two daughters; the name of the older was Leah, and the name of the younger was Rachel.

But Laban only said, “It is not the tradition here to give the younger [daughter in marriage] before the older.

Then Saul said to David, “Behold I will give you my older daughter Merab as a wife; only be brave for me and fight the Lord’s battles.” For Saul thought, “My hand shall not be against him, but let the hand of the Philistines be against him.”

King Solomon answered and said to his mother, “And why are you asking for Abishag the Shunammite for Adonijah? Ask the kingdom for him also—since he is my older brother—[ask it] for him and for Abiathar the priest and Joab the son of Zeruiah [his supporters]!”

Now your older sister is Samaria, she with her daughters (outlying cities) who live north of you; and your younger sister is Sodom, she with her daughters who live south of you.

Then you will remember your ways and be ashamed when you receive your sisters, both your older and your younger; I will give them to you as daughters, but not because of your covenant [with Me].

Their names were Oholah the elder and Oholibah her sister, and they became Mine and they gave birth to sons and daughters. And as for [the identity of] their names, Oholah is Samaria (capital city of Israel) and Oholibah is Jerusalem (capital city of Judah).