2 Chronicles 21:3

And their father gave them great gifts of silver, and of gold, and of precious things, with fenced cities in Judah: but the kingdom gave he to Jehoram; because he was the firstborn.

Cross-references

In 2 Chronicles 11:23, Rehoboam similarly gave gifts and cities to his sons — a parallel practice of distributing wealth among heirs.

Deuteronomy 21:15-17 commands that the firstborn receive the inheritance — the legal basis for Jehoshaphat giving the kingdom to Jehoram.

In Genesis 25:6, Abraham gave gifts to his other sons but sent them away from Isaac — a similar pattern of favoring the chosen heir.