Hebrews 2:10-11 (New International Version)
10In bringing many sons to glory, it was fitting that God, for whom and through whom everything exists, should make the author of their salvation perfect through suffering. 11Both the one who makes men holy and those who are made holy are of the same family. So Jesus is not ashamed to call them brothers.
I have loved knowing throughout reading the Bible that the word PERFECT does not mean in the original language what we take it to mean in our culture. There is an interesting discourse on the topic here. To sum it up, this writer believes that the word perfect does not entirely mean without flaw or error, but more importantly--mature, healthy, or complete. The article also talks about being "perfected in love"...which he simply explains as humans being governed by the grace and love of God and not be selfish desires.
Matthew 5:48 (New International Version)
48Be perfect, therefore, as your heavenly Father is perfect.
This concept makes this previous verse much easier to acknowledge and hide in our hearts.
LOL, I'm going to edit this post tomorrow, I'm getting to distracted to do it justice :)