Therefore he is able to save completely those who come to God through him, because he always lives to intercede for them. (NIV)

Therefore He is able also to save to the uttermost (completely, perfectly, finally, and for all time and eternity) those who come to God through Him, since He is always living to make petition to God and intercede with Him and intervene for them. (AMP)

Wherefore he is able also to save them to the uttermost that come unto God by him, seeing he ever liveth to make intercession for them. (KJV)