'The Twelve' in the Bible

So the Twelve called the disciples together and said, “It is not appropriate for us to neglect [teaching] the word of God in order to serve tables and manage the distribution of food.

And God gave Abraham a covenant [a formal agreement to be strictly observed] of [which] circumcision [was the sign]; and so [under these circumstances] Abraham became the father of Isaac, and circumcised him on the eighth day; and Isaac [became the father] of Jacob, and Jacob [became the father] of the twelve patriarchs.