'Shrink' in the Bible

But we are not people who shrink back and perish, but are among those who believe and gain possession of their souls.

And now, dear children, continue in union with Him; so that, if He re-appears, we may have perfect confidence, and may not shrink away in shame from His presence at His Coming.

But they have gained the victory over him because of the blood of the Lamb and of the testimony which they have borne, and because they held their lives cheap and did not shrink even from death.