Till an arrow pierces his liver, like a bird darting into a snare, little knowing it will cost him his life.
NIV
Till a dart [of passion] pierces and inflames his vitals; then like a bird fluttering straight into the net [he hastens], not knowing that it will cost him his life.
AMP
Till a dart strike through his liver; as a bird hasteth to the snare, and knoweth not that it is for his life.
KJV