How do we know that being childlike is important for salvation?

The importance of being childlike for salvation is directly addressed in Matthew 18:3-4, where Jesus teaches that one must be converted and become like little children to enter the kingdom of heaven. This statement illustrates that the characteristics of a child—such as dependence, simplicity, and humility—are vital for genuine faith. He also uses a child as an example to convey that humility and the ability to trust are essential aspects of a believer's relationship with God. The childlike faith exemplifies a reliance on God that is free from the pride and self-sufficiency that can hinder one's approach to salvation.