Nehemiah 13:30

Thus I cleansed and purified them from everything foreign (pagan), and I defined the duties of the priests and Levites, each one in his task;

and that we will not give our daughters [as wives] to the peoples of the land or take their daughters for our sons.

When David reached old age, he made his son Solomon king over Israel.

Now these are the priests and Levites who came up with Zerubbabel the son of Shealtiel and with Jeshua: Seraiah, Jeremiah, Ezra,

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Thus cleansed I them from all strangers, and appointed the wards of the priests and the Levites, every one in his business;

and that we will not give our daughters [as wives] to the peoples of the land or take their daughters for our sons.

Now these are the priests and Levites who came up with Zerubbabel the son of Shealtiel and with Jeshua: Seraiah, Jeremiah, Ezra,