'Preservation' in the Bible

You shall season every grain offering with salt so that the salt (preservation) of the covenant of your God will not be missing from your grain offering. You shall offer salt with all your offerings.

The Lord commanded us to follow all these statutes and to fear the Lord our God for our prosperity always and for our preservation, as it is today.

Therefore I encourage you to take some food, for this is for your preservation, for not a hair from the head of any of you will perish.”

for I know [with confidence] that this will turn out for my deliverance and spiritual well-being, through your prayers and the [superabundant] supply of the Spirit of Jesus Christ [which upholds me].

But we are not among those who shrink back to destruction, but among those who have faith to the preservation of [our] souls.