G3153–ματαιότης–mataiotēs

For the creation was subjected to vanity, not of its own will, but by reason of him who subjected it, in hope

ματαιότητι mataiotēti “futility”

This I say therefore, and testify in the Lord, that ye no longer walk as the Gentiles also walk, in the vanity of their mind,

ματαιότητι mataiotēti “[the] futility”

For, uttering great swelling [supplied: words] of vanity, they entice in the lusts of the flesh, by lasciviousness, those who are just escaping from them that live in error;

ματαιότητος mataiotētos “of vanity”