Communion is a practice in which believers come together to remember Christ’s sacrifice by eating bread and drinking juice as symbols of his body and blood. (After taking the cup, he gave thanks and said, “Take this and divide it among you. For I tell you I will not drink again from the fruit of the vine until the kingdom of God comes.” And he took the bread, gave thanks and broke it, and gave it to them saying, “This is my body given to you; do this in remembrance of me.” In the same way, after the supper he took the cup, saying, “This cup is the new covenant in my blood, which is poured out for you.” – Luke 22:17-20)

Christians should self-reflect on the sacrifice Christ has made while partaking in communion and to not take this lightly. (So then, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of sinning against the body and blood of the Lord. Everyone ought to examine themselves before they eat of the bread and drink from the cup. For those who eat and drink without discerning the body of Christ eat and drink judgment on themselves. – 1 Corinthians 11:27-30)

While the problem of sin carried on in the lives of all, sin had no place in God’s presence. But as everyone is guilty of doing wrong no one would be able to approach God.

But God desires more than this, He wants people to know Him, but more than that, He wants a relationship.
God’s ultimate plan was for His Son to free all people from sin, and to have a personal relationship with Him. Only through the Son can we seek salvation. (For it is by grace you have been saved, through faith – and this is not from yourselves, it is the gift of God – not by works so that no one can boast. – Ephesians 2:8-9) (For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. – John 3:16).