To Bind

To Bind is a spell in the Book of Shadows which, as the title indicates, binds the powers of whom the spell is cast upon.

Morality Bites
During the witch trials in 2009, which started after Phoebe was exposed as witch and convicted for murder, Piper wanted to bind the powers of her daughter, Melinda. She wanted to protect from being exposed, even though her daughter made the promise never to use her powers again. At the end, Piper couldn't get through with it and decided not to bind her daughter's powers.

To Bind

 * I take your hands
 * in mine,
 * And with this spell
 * I will entwine,
 * Your powers
 * I'll forever bind,
 * From now until
 * the end of time.