1 Corinthians 11:27-34

So then whoever eats the bread or drinks the cup of the Lord in a way that is unworthy [of Him] will be guilty of [profaning and sinning against] the body and blood of the Lord. But a person must [prayerfully] examine himself [and his relationship to Christ], and only when he has done so should he eat of the bread and drink of the cup. For anyone who eats and drinks [without solemn reverence and heartfelt gratitude for the sacrifice of Christ], eats and drinks a judgment on himself if he does not recognize the body [of Christ]. That [careless and unworthy participation] is the reason why many among you are weak and sick, and a number sleep [in death]. But if we evaluated and judged ourselves honestly [recognizing our shortcomings and correcting our behavior], we would not be judged. But when we [fall short and] are judged by the Lord, we are disciplined [by undergoing His correction] so that we will not be condemned [to eternal punishment] along with the world. So then, my brothers and sisters, when you come together to eat [the Lord’s Supper], wait for one another [and see to it that no one is left out]. If anyone is too hungry [to wait], let him eat at home, so that you will not come together for judgment [on yourselves]. About the remaining matters [of which I was informed], I will take care of them when I come.