I will maintain my innocence and never let go of it; my conscience will not reproach me as long as I live.
NIV
My uprightness and my right standing with God I hold fast and will not let them go; my heart does not reproach me for any of my days and it shall not reproach me as long as I live.
AMP
My righteousness I hold fast, and will not let it go: my heart shall not reproach me so long as I live.
KJV