Unbelieving parents and believing parents have hopes for their children. What this article shows is that their hope is based on different grounds. The unbelieving parents' hopes for their children is in their child, while the believing parents rest in God.
Looking at Mark 8:23-24, this article applies the teaching to parents and teachers. It shows them how God works to lead people to his knowledge and how he brings growth in the young ones. Parents should put their hope in God for the spiritual growth of their children.