'Twelve' in the Bible

Behold, a woman who had an issue of blood for twelve years came behind him, and touched the fringe of his garment;

He called to himself his twelve disciples, and gave them authority over unclean spirits, to cast them out, and to heal every disease and every sickness.

Now the names of the twelve apostles are these. The first, Simon, who is called Peter; Andrew, his brother; James the son of Zebedee; John, his brother;

Jesus sent these twelve out, and commanded them, saying, "Don't go among the Gentiles, and don't enter into any city of the Samaritans.

It happened that when Jesus had finished directing his twelve disciples, he departed from there to teach and preach in their cities.

They all ate, and were filled. They took up twelve baskets full of that which remained left over from the broken pieces.

Jesus said to them, "Most certainly I tell you that you who have followed me, in the regeneration when the Son of Man will sit on the throne of his glory, you also will sit on twelve thrones, judging the twelve tribes of Israel.

As Jesus was going up to Jerusalem, he took the twelve disciples aside, and on the way he said to them,

Then one of the twelve, who was called Judas Iscariot, went to the chief priests,

Now when evening had come, he was reclining at the table with the twelve disciples.

While he was still speaking, behold, Judas, one of the twelve, came, and with him a great multitude with swords and clubs, from the chief priest and elders of the people.

Or do you think that I couldn't ask my Father, and he would even now send me more than twelve legions of angels?