so that ye may approve the things that are excellent; that ye may be sincere and void of offence unto the day of Christ;

so that you may be able to test and prove what is best and may be pure and blameless for the day of Christ,

for your proving the things that differ, that ye may be pure and offenceless--to a day of Christ,

that ye may judge of and approve the things that are more excellent, in order that ye may be pure and without offence for Christ's day,