“Communicant” comes from a Latin word that means “to share with.” It’s been used for centuries as a title for those who share the Lord’s Supper together.
We believe that the Lord's Supper is a profound ritual, bringing the grace of God to believers. The Lord's Supper is a sharing in the sacrifice of Jesus, publicly professing our faith in him and reliance on his grace. So a communicant is one who takes the Lord's Supper with the Church.
While children of believers are considered part of the visible church, they are non-communing members (do not participate in the Lord's Supper) until they personally own and profess faith in Jesus.
To assist parents in leading their children through this ownership of faith, we want to provide training for the children of communing members so that they clearly understand the gospel, their relationship to God, and what God is doing in this world through his Church. That's why we provide a Communicants Class.