Out, vile jelly, where is they luster now?

Out, vile jelly, where is they luster now?

The line "Out, vile jelly, where is thy luster now?" is from Act 5, Scene 3 of William Shakespeare's play Macbeth. It is spoken by Macbeth upon hearing of the death of his wife, Lady Macbeth. The line is a reflection of Macbeth's despair and disillusionment as he grapples with the consequences of his actions and the loss of his once powerful and ambitious partner.