+ Mk 10: 13-16
And people were bringing children to him that he might touch them, but the disciples rebuked them.
When Jesus saw this he became indignant and said to them, “Let the children come to me; do not prevent them, for the kingdom of God belongs to such as these.
Amen, I say to you, whoever does not accept the kingdom of God like a child will not enter it.”
Then he embraced them and blessed them, placing his hands on them.
The New American Bible
The Catechism of the Catholic Church
1244 Having become a child of God clothed with the wedding garment, the neophyte is admitted “to the marriage supper of the Lamb” and receives the food of the new life, the body and blood of Christ. The Eastern Churches maintain a lively awareness of the unity of Christian initiation by giving Holy Communion to all the newly baptized and confirmed, even little children, recalling the Lord’s words: “Let the children come to me, do not hinder them.” The Latin Church, which reserves admission to Holy Communion to those who have attained the age of reason, expresses the orientation of Baptism to the Eucharist by having the newly baptized child brought to the altar for the praying of the Our Father.
1261 As regards children who have died without Baptism, the Church can only entrust them to the mercy of God, as she does in her funeral rites for them. Indeed, the great mercy of God who desires that all men should be saved, and Jesus’ tenderness toward children which caused him to say: “Let the children come to me, do not hinder them,” allow us to hope that there is a way of salvation for children who have died without Baptism. All the more urgent is the Church’s call not to prevent little children coming to Christ through the gift of holy Baptism.