'Twelve' in the Bible

And the twelve, having called the multitude of the disciples to them, said, It is not right that we, leaving the word of God, should serve tables.

And he gave to him the covenant of circumcision; and thus he begat Isaac and circumcised him the eighth day; and Isaac Jacob, and Jacob the twelve patriarchs.

And all the men were about twelve.

As thou mayest know that there are not more than twelve days since I went up to worship at Jerusalem,

to which our whole twelve tribes serving incessantly day and night hope to arrive; about which hope, O king, I am accused of the Jews.