How about these scripture verses.
1 Samuel 2:18 Meanwhile the boy Samuel, girt with a linen apron, was serving in the presence of the LORD.
1 Samuel 3:4* The LORD called to Samuel, who answered, “Here I am.”*
1 Samuel 3:10* the LORD came and revealed His presence, calling out as before, “Samuel, Samuel!” Samuel answered, “Speak, for your servant is listening.”*
Luke 18:16-17* Jesus, however, called the children to himself and said, “Let the children come to me and 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.”*
I am rather convinced that it is a very beautiful thing if a child learns to love the Lord at a young age. Those early childhood experiences can last and influence a lifetime.