NET
4 Look, your fasting is accompanied by arguments, brawls, and fistfights. Do not fast as you do today, trying to make your voice heard in heaven.
Darby
4 Behold, ye have fasted for strife and debate, and to smite with the fist of wickedness; ye do not at present fast, to cause your voice to be heard on high.
KJV
4 Behold, ye fast for strife and debate, and to smite with the fist of wickedness: ye shall not fast as [ye do this] day, to make your voice to be heard on high.