Wisdom of Ben Sira 22:19-21

New Catholic Bible

¹⁹ Jab an eye and you will bring tears;
    jab a heart and you will lay bare its feelings.
²⁰ If you throw a stone at birds, you frighten them away;
    if you revile a friend, you destroy a friendship.
²¹ If you draw a sword against a friend,
    do not despair, for it can still be undone.