'Spotless' in the Bible

so that you may always prove yourselves to be blameless and spotless--irreproachable children of God in the midst of a crooked and perverse generation, among whom you are seen as heavenly lights in the world,

but with the precious blood of Christ--as of an unblemished and spotless lamb.

And she was permitted to array herself in fine linen, shining and spotless; the fine linen being the righteous actions of God's people.

The armies in Heaven followed Him--mounted on white horses and clothed in fine linen, white and spotless.