Jesus very clearly expressed that unless we become as little children, we will not enter into the kingdom of Heaven (Matthew 18:3).
Simply, if we think of ourselves to be more than children, then such thinking implies we do not need God. Just as children need parents, so too as the elect children of God we need and desire to be wth our FATHER which is in HEAVEN (Matthew 6:9-13) (Romans 8:20-21).
Jesus, the only begotten Son of God says: “Blessed are the peacemakers: for they shall be called the children of God. Blessed are the pure in heart: for they shall see God” (Matthew 5:8-9).
“Fear not, little flock; for it is your Father’s good pleasure to give you the kingdom” (Luke 12:32).