Babies and little children are innocent in the sight of God. They have no sin and therefore have no need for repentance or baptism while they are in that innocent state. Later, when they reach an age of understanding and are able to comprehend sin and the commitment associated with being baptized, they are then able to consider taking that step and giving their lives to the Lord.
For children who have not yet reached an age of understanding, The Church of Jesus Christ offers the opportunity for a baby or little child to be "blessed" by a minister of The Church. This blessing consists of a prayer that is offered by the minister, asking God to watch over that child until he or she is old enough to be capable of making his or her own decision about serving God.
The process used for the blessing of children is based on the following scripture:
"Jesus…said unto them, Suffer the little children to come unto me, and forbid them not: for of such is the kingdom of God. And he took them up in his arms, put his hands upon them, and blessed them." (Mark 10:14,16)