There is a vast difference, however, between childlike faith and childish faith, though the two are often confused. [Childlike faith calls the believer] to remain forever in a state of awe and trust of their heavenly Father, while a childish faith balks at learning the things of God in depth. It refuses the meat of the gospel while clinging to a diet of milk...The call of the New Testament is to maturity.
R.C. Sproul