Wow, there's a lot of hateful answers here.
I've been reading a lot of Catholic history, since I am new to the faith. You will find many female Christian saints in their records. What were they considered saints for?
They turned away from the 'normal' life the world expected of them, and offered themselves to God as a bride offers herself to a bridegroom. While women cannot take holy orders and become priests, they can still serve the God and the Church in acts of charity and physical works of mercy. Over the centuries women taken vows of chastity and then have evangelized, started schools, organized hospitals, run orphanages, raised up countries, and come between warring armies. Women have had visions and ecstasies, done miracles, suffered for the faith, and rebuked popes.
These are women of grace. These are nuns.
Nuns are not specifically named in the Bible, but the women who surrounded Jesus and the Apostles, and supported His (and their) ministry are mentioned, sometimes by name. If you'll recall, the first person to see Jesus risen from the dead was a woman:
Do you think that was an accident?