Philippians 1:10

so that you may be able to discern what is best and may be pure and blameless until the day of Christ,

(New International Version)

so that you may approve the things that are excellent, in order to be sincere and blameless until the day of Christ;

(New American Standard Bible)

That ye may approve things that are excellent; that ye may be sincere and without offence till the day of Christ;

(King James Version)