Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, until the end of the age.
-Matthew 28:19-20 (NABRE)
"Full initiation into the Church occurs in stages. The Rite of Christian Initiation of Adults (Roman rite) provides a norm for catechetical as well as liturgical practice in this regard. The intimate relationship of the sacraments of Baptism, Confirmation (Chrismation) and Eucharist should be emphasized in the catechesis of both adults and children. Such catechesis will involve many members of the parish community who support and pray with the catechized, besides instructing them so that they may grow in understanding of the Christian message.
The sacraments Baptism, Confirmation and the Most Holy Eucharist are so interrelated that they are required for full Christian initiation" - Sharing the Light of Faith: National Catechetical Directory