Okay, let's look at Matthew 5 and 1 Peter together in regards to the verses about being "perfect" and "holy".
Matthew 5
Love for Enemies
43"You have heard that it was said, 'Love your neighbor and hate your enemy.' 44But I tell you: Love your enemies and pray for those who persecute you, 45that you may be sons of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. 46If you love those who love you, what reward will you get? Are not even the tax collectors doing that? 47And if you greet only your brothers, what are you doing more than others? Do not even pagans do that? 48Be perfect, therefore, as your heavenly Father is perfect.
1 Peter
5But just as he who called you is holy, so be holy in all you do; 16for it is written: "Be holy, because I am holy." 17Since you call on a Father who judges each man's work impartially, live your lives as strangers here in reverent fear. 18For you know that it was not with perishable things such as silver or gold that you were redeemed from the empty way of life handed down to you from your forefathers, 19but with the precious blood of Christ, a lamb without blemish or defect. 20He was chosen before the creation of the world, but was revealed in these last times for your sake. 21Through him you believe in God, who raised him from the dead and glorified him, and so your faith and hope are in God.
22Now that you have purified yourselves by obeying the truth so that you have sincere love for your brothers, love one another deeply, from the heart.
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If you'll notice in both, the scriptures speak about love.
Now how does love relate to being perfect and holy?
It's very simple really... Love God with all your heart...love your neighbor as yourself and love IS the fulfillment of the law.
Now Jesus also said, the following were the two greatest commandments: Love God with all your heart, mind, soul and strength, and love your neighbor as thyself -- all the law and prophets hang on these two commandments.
And then the scriptures say that LOVE is the fulfillment of the law.
Now, for us to be perfect and/or holy, I believe is based around this "love" Jesus is speaking about. Because love is the fulfillment of the love, which means if you have enough love in your heart everyday to walk in His love, you will not be breaking the law because love is now the fulfillment of the law.
Now let me put it another way:
Let's pretend we are having a conversation and I ask you Chacci...
LightDancer: You love God right?
Chacci: Of course!
LightDancer: Well you don't want to willfully sin against God or deliberately hurt anyone do you?
Chacci: Of course not.
LightDancer: Then you are walking in this love. Love keeps us holy as we fill the "love commandments" of Jesus Christ.
This is why Christians also say our walk with The Lord is called a "love walk"... it's loving others even when it hurts... even if they may have hurt you. That's a Jesus kind of love. It has no bounderies and love is not only for those who love us. It is even for those who do not. This love is even for those who do not love God. This love is even for those who deliberately hurt us. This love is for our enemies. This kind of love makes us "perfect" in Christ's eyes. (I can get you the scripture reference where it says "love IS the fulfillment of the law"... if you need it.)
However, further in 1 Peter it also speaks about Christ's blood. Remember we are washed and sanctified by the atoning blood of Jesus Christ. His blood cleanses us. His blood is the only atonement and we receive His sacrifice for us with thankfulness and joy.
See Chacci, I think some Christians set some "holy" and "perfect" kind of standard for themselves they don't understand. Jesus gave us this tool to perfection... it's called love, loving even when it hurts. With all the fighting I see on this board, I am beginning to wonder what happened to that "love message"? Especially in light of that forgiving our brothers and sisters in Christ that 77 x 7 thing. Love is also about forgiveness even when it hurts to forgive someone who has hurt you. That's what Christ did for us, he forgave us while he even suffered for us. This is the love we need to learn.
Also in 1 Peter, it is also referring to the other scriptures where God shows no partiality, is no respector of persons, etc... But that is another subject. We are all ONE in Christ Jesus.
I'm still praying for the Chacci on the Christian Forums!