Deuteronomy 21:16
16 then on the day when he assigns his possessions as an inheritance to his sons, he may not treat the son of the loved as the firstborn in preference to the son of the unloved, who is the firstborn,
The ESV® Bible (The Holy Bible, English Standard Version®), © 2001 by Crossway,
a publishing ministry of Good News Publishers. ESV Text Edition: 2025.