So anyone who eats this bread or drinks this cup of the Lord unworthily is guilty of sinning against the body and blood of the Lord. That is why you should examine yourself before eating the bread and drinking the cup. For if you eat the bread or drink the cup without honouring the body of Christ, you are eating and drinking God’s judgement upon yourself.
1 Corinthians 11:27-29 NLT
When I take Communion, I am taking the body of Christ and the blood of Christ into my body, into my blood. If I am not holy at the time, I am contaminating Christ. I deserve judgement for that. But it goes further, because I am told that my body is a temple of the Holy Spirit, and if I am not holy, I am contaminating him.
I really need to concentrate on being holy, on being perfect. I can be both whenever I repent and seek forgiveness, but that is the reactive method – I need to be proactive in this, to put a much more conscious effort into being holy. It needs to be so constant it is my lifestyle.