To all readers, eternally grateful has declared no one will be perfect until Jesus returns as a statement of faith, because I specifically questioned him on this, pointing out this was a statement of faith not attested to in scripture either positively or negatively.
Philippians 3:12-16 (HCSB)
12 Not that I have already reached [the goal] or am already fully mature, but I make every effort to take hold of it because I also have been taken hold of by Christ Jesus.
13 Brothers, I do not consider myself to have taken hold of it. But one thing I do: forgetting what is behind and reaching forward to what is ahead,
14 I pursue as my goal the prize promised by God's heavenly call in Christ Jesus.
15
Therefore, all who are mature should think this way. And if you think differently about anything, God will reveal this to you also.
16 In any case, we should live up to whatever [truth] we have attained.
Besides, have you met any perfect Christian?
Often times the meaning 'mature' is taken to mean perfect.