Unlikely as it sounds, I made the decision to become a Christian at three years of age. I remember the occasion clearly. I was attending a Sunday evening church service and was sitting near the back with my mother. My father was the pastor; he invited those who wished to do so to come forward, and I joined them. I recall crying and asking Jesus to forgive my sins. It is overwhelming for me now to imagine the King of the universe caring about an insignificant kid barely out of toddlerhood!
Not all children will heed a call to faith that early or dramatically, of course—nor should they be expected to. Yet it is important to note that my own conversion at that young age was possible because of my parents' example. From my first days, I saw them on their knees, praying and talking to the Lord. They later told me that I attempted to pray before I learned to talk, imitating the sounds I had heard.
If you set a faithful example beginning with the day your sons and daughters are born, they will never forget what they have seen and heard. Even if they reject God later, the remnant of those early memories will be with them for the rest of their lives—and may well bring them back to the fold. As parents, this is our privilege and duty as outlined in Scripture: "Bring them up in the nurture and admonition of the Lord" (Ephesians 6:4, kjv).
From Dr. Dobson's book Night Light For Parents