The innocuous palette knife—a tool used to mix paint colors together—takes on a feeling of danger in this scene, as Vermeer refuses to relinquish his plan to make Griet wear the earrings. Early in the book, Griet realized that Vermeer doesn’t always paint things as they appear, but as he wants them to be seen. This implies that he could paint the pearl from his imagination easily. But he
wants to see her in them—suggesting his desire to dominate and control Griet, to prove that he has more claim on her than van Ruijven does, to force the world around him to conform to his artistic vision.