'Groups' in the Bible

All wildlife, all livestock, every bird, and every creature that crawls on the earth came out of the ark by their groups.

These were the Levite family groups:the Libnite clan,the Hebronite clan,the Mahlite clan,the Mushite clan,and the Korahite clan.Kohath was the ancestor of Amram.

So Joab son of Zeruiah and David’s soldiers marched out and met them by the pool of Gibeon. The two groups took up positions on opposite sides of the pool.

They also appointed the priests by their divisions and the Levites by their groups to the service of God in Jerusalem, according to what is written in the book of Moses.

In every province and every city, wherever the king’s command and his law reached, joy and rejoicing took place among the Jews. There was a celebration and a holiday. And many of the ethnic groups of the land professed themselves to be Jews because fear of the Jews had overcome them.