Being spiteful comes from the heart

[Ezekiel 25:15-16] Thus says the Lord GOD: “Because the Philistines dealt vengefully and took vengeance with a spiteful heart, to destroy because of the old hatred,” therefore thus says the Lord GOD: “I will stretch out My hand against the Philistines, and I will cut off the Cherethites and destroy the remnant of the seacoast.