English Standard Version
But I will warn you whom to fear: fear him who, after he has killed, has authority to cast into hell. Yes, I tell you, fear him!New International Version
But I will show you whom you should fear: Fear him who, after the killing of the body, has power to throw you into hell. Yes, I tell you, fear him.Catholic Public Domain Version
But I will reveal to you whom you should fear. Fear him who, after he will have killed, has the power to cast into Hell. So I say to you: Fear him