NET
5 But I will warn you whom you should fear: Fear the one who, after the killing, has authority to throw you into hell. Yes, I tell you, fear him!
Darby
5 But I will shew you whom ye shall fear: Fear him who after he has killed has authority to cast into hell; yea, I say to you, Fear *him*.
KJV
5 “But I will forewarn you whom ye shall fear: Fear him, which after he hath killed hath power to cast into hell; yea, I say unto you, Fear him.”