What is the Lord’s Supper? – Shorter Westminster Catechism

The Lord’s Supper is a sacrament, wherein, by giving and receiving bread and wine, according to Christ’s appointment, his death is showed forth ; and the worthy receivers are, not after a corporal and carnal manner, but by faith, made partakers of his body and blood, with all his benefits, to their spiritual nourishment, and growth in grace.

To whom is Baptism to be administered? – Shorter Westminster Catechism

What is required for the worthy receiving of the Lord’s Supper? – Shorter Westminster Catechism