Philippians 1:9-10 NLT  I pray that your love will overflow more and more, and that you will keep on growing in knowledge and understanding [judgement, keen insight, discernment].  

10  For I want you to understand what really matters, [approve things that are excellent, learn to sense what is vital and of real value]

so that you may live pure and blameless lives until the day of Christ’s return.