I Chronicles 9:6 Halakhah

וּמִן־בְּנֵי־זֶ֖רַח יְעוּאֵ֑ל וַאֲחֵיהֶ֖ם שֵׁשׁ־מֵא֥וֹת וְתִשְׁעִֽים׃

And of the sons of Zerah: Jeuel, and their brethren, six hundred and ninety.

Read halakhic rulings (Jewish law) on I Chronicles 9:6: and classical halakhic sources.