“For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood. And it is yet far more evident: for that after the similitude of Melchisedec there ariseth another priest, who is made, not after the law of a carnal commandment, but after the power of an endless life. For he testifieth, Thou art a priest for ever After the order of Melchisedec.”
Hebrews 7:14-17 KJV,https://bible.com/bible/1/heb.7.14-17.KJV
Jeremiah 29
English Standard Version
Jeremiah's Letter to the Exiles
29 These are the words of the letter that Jeremiah the prophet sent from Jerusalem to the surviving elders of the exiles, and to the priests, the prophets, and all the people, whom Nebuchadnezzar had taken into exile from Jerusalem to Babylon. 2 This was after King Jeconiah and the queen mother, the eunuchs, the officials of Judah and Jerusalem, the craftsmen, and the metal workers had departed from Jerusalem. 3 The letter was sent by the hand of Elasah the son of Shaphan and Gemariah the son of Hilkiah, whom Zedekiah king of Judah sent to Babylon to Nebuchadnezzar king of Babylon. It said: 4 “Thus says the Lord of hosts, the God of Israel, to all the exiles whom I have sent into exile from Jerusalem to Babylon: 5 Build houses and live in them; plant gardens and eat their produce. 6 Take wives and have sons and daughters; take wives for your sons, and give your daughters in marriage, that they may bear sons and daughters; ...