'Younger' in the Bible

Also to Shem, the father of all the children of Eber [including the Hebrews], the older brother of Japheth, children were born.

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].

Then the next day, the firstborn said to the younger, “Behold, I lay with my father last night; let us make him drunk with wine tonight also, and then you go in and lie with him, so that we may preserve our family through our father.”

So they gave their father wine that night also, and the younger got up and lay with him; and again he did not know when she lay down or when she got up.

The younger also gave birth to a son and named him Ben-ammi (son of my people); he is the father of the Ammonites to this day.

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.”

Rebekah said to Jacob her [younger and favorite] son, “Listen carefully: I heard your father saying to Esau your brother,

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.

Jacob loved Rachel, so he said, “I will serve you [as a hired workman] for seven years [in return] for [the privilege of marrying] Rachel your younger daughter.”

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

But Israel reached out his right hand and laid it on the head of Ephraim, who was the younger, and his left hand on Manasseh’s head, crossing his hands [intentionally], even though Manasseh was the firstborn.

But his father refused and said, “I know, my son, I know; Manasseh also will become a people and he will be great; but his younger brother shall be greater than he, and his descendants shall become a multitude of nations.”