'Fathers' in the Bible

And brother will give up brother to death, and the father his child: and children will go against their fathers and mothers, and put them to death.

Why do your disciples go against the teaching of the fathers? for they take food with unwashed hands.

And say, If we had been in the days of our fathers, we would not have been partakers with them in the blood of the prophets.

Fill ye up then the measure of your fathers.