The lectionary readings for today include the narrative of the apostle Thomas in disbelief about the Resurrection of Jesus.
An excerpt from Children’s Ministry in the Way of Jesus:
But remember that doubt is part of faith. Being a faithful follower of Jesus means having doubts. The story of “doubting” Thomas is often used to scare children away from having doubts and second thoughts, but a closer look at it reveals that Jesus is willing to accept us with all our questions and doubts. He takes the time to meet Thomas where he is and to help him wrestle with his disbelief (Jn 20:26-29). After all, the Gospels show us that Jesus in his full humanity had a faith that made room for doubt (Lk 22:41-44).
For more, check out this article I wrote with Ivy Beckwith (free with subscription).