'Preserves' in the Bible

The law of the Lord is perfect and preserves one's life. The rules set down by the Lord are reliable and impart wisdom to the inexperienced.

He preserves our lives and does not allow our feet to slip.

The one who acquires wisdom loves himself; the one who preserves understanding will prosper.

For wisdom provides protection, just as money provides protection. But the advantage of knowledge is this: Wisdom preserves the life of its owner.