Genesis 27:1-29
When Isaac was old and his eyes were so weak that he could no longer see, he called his older son Esau and said to him, “My son.” “Here I am,” Esau replied. / “Look,” said Isaac, “I am now old, and I do not know the day of my death. / Take your weapons—your quiver and bow—and go out into the field to hunt some game for me. ...

Genesis 37:3-4
Now Israel loved Joseph more than his other sons, because Joseph had been born to him in his old age; so he made him a robe of many colors. / When Joseph’s brothers saw that their father loved him more than any of them, they hated him and could not speak a kind word to him.

Malachi 1:2-3
“I have loved you,” says the LORD. But you ask, “How have You loved us?” “Was not Esau Jacob’s brother?” declares the LORD. “Yet Jacob I have loved, / but Esau I have hated, and I have made his mountains a wasteland and left his inheritance to the desert jackals.”

Romans 9:10-13
Not only that, but Rebecca’s children were conceived by one man, our father Isaac. / Yet before the twins were born or had done anything good or bad, in order that God’s plan of election might stand, / not by works but by Him who calls, she was told, “The older will serve the younger.” ...

Hebrews 12:16-17
See to it that no one is sexually immoral, or is godless like Esau, who for a single meal sold his birthright. / For you know that afterward, when he wanted to inherit the blessing, he was rejected. He could find no ground for repentance, though he sought the blessing with tears.

Genesis 29:30
Jacob slept with Rachel as well, and indeed, he loved Rachel more than Leah. So he worked for Laban another seven years.

Genesis 48:17-19
When Joseph saw that his father had placed his right hand on Ephraim’s head, he was displeased and took his father’s hand to move it from Ephraim’s head to Manasseh’s. / “Not so, my father!” Joseph said. “This one is the firstborn; put your right hand on his head.” / But his father refused. “I know, my son, I know!” he said. “He too shall become a people, and he too shall be great; nevertheless, his younger brother shall be greater than he, and his offspring shall become a multitude of nations.”

Deuteronomy 21:15-17
If a man has two wives, one beloved and the other unloved, and both bear him sons, but the unloved wife has the firstborn son, / when that man assigns his inheritance to his sons he must not appoint the son of the beloved wife as the firstborn over the son of the unloved wife. / Instead, he must acknowledge the firstborn, the son of his unloved wife, by giving him a double portion of all that he has. For that son is the firstfruits of his father’s strength; the right of the firstborn belongs to him.

1 Samuel 1:4-5
And whenever the day came for Elkanah to present his sacrifice, he would give portions to his wife Peninnah and to all her sons and daughters. / But to Hannah he would give a double portion, for he loved her even though the LORD had closed her womb.

1 Samuel 16:6-13
When they arrived, Samuel saw Eliab and said, “Surely here before the LORD is His anointed.” / But the LORD said to Samuel, “Do not consider his appearance or height, for I have rejected him; the LORD does not see as man does. For man sees the outward appearance, but the LORD sees the heart.” / Then Jesse called Abinadab and presented him to Samuel, who said, “The LORD has not chosen this one either.” ...

2 Samuel 13:21
When King David heard all this, he was furious.

1 Kings 11:1-3
King Solomon, however, loved many foreign women along with the daughter of Pharaoh—women of Moab, Ammon, Edom, and Sidon, as well as Hittite women. / These women were from the nations about which the LORD had told the Israelites, “You must not intermarry with them, for surely they will turn your hearts after their gods.” Yet Solomon clung to these women in love. / He had seven hundred wives of royal birth and three hundred concubines—and his wives turned his heart away.

Proverbs 28:21
To show partiality is not good, yet a man will do wrong for a piece of bread.

Matthew 10:37
Anyone who loves his father or mother more than Me is not worthy of Me; anyone who loves his son or daughter more than Me is not worthy of Me;

Luke 15:11-32
Then Jesus said, “There was a man who had two sons. / The younger son said to him, ‘Father, give me my share of the estate.’ So he divided his property between them. / After a few days, the younger son got everything together and journeyed to a distant country, where he squandered his wealth in wild living. ...