Perfecting holiness out of reverence for God

2 Corinthians 6:11-7:1
Open wide your hearts also. Speak freely to them.
Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what does a believer have in common with an unbeliever?
Come out from them  and be separate, says the Lord.
I will be a Father to you, and you will be my sons and daughter, says the Lord Almighty.
Therefore, since we have these promises, dear friends, let us purify ourselves from everything that contaminates body and spirit, perfecting holiness out of reverence for God.
Why?
Open wide our heart to speak the truth among believers.
There is not common between Christian and unbelievers, for there is not common evaluation mind.
It is the promise from the Lord, he is my father and I am his children. So purify ourselves from everything contaminated.
Contaminated body: promiscuous body, meat for the god's sacrifice.
Contaminated spirit: unclean mind, logical, idea, etc.
Yoke  together: the heart of coworker to serve the Lord.
How?
Open my heart to brothers and purify myself to reverence for the Lord.