'Lifeless' in the Bible

Therefore leaving elementary instruction about the Christ, let us advance to mature manhood and not be continually re-laying a foundation of repentance from lifeless works and of faith in God,

how much more certainly shall the blood of Christ, who strengthened by the eternal Spirit offered Himself to God, free from blemish, purify your consciences from lifeless works for you to serve the ever-living God?

For just as a human body without a spirit is lifeless, so also faith is lifeless if it is unaccompanied by obedience.