Mark 10:15
Truly I tell you, anyone who will not receive the kingdom of God like a little child will never enter it — the reception of the kingdom like a child is the condition for entry. The child's posture toward the kingdom is the model: a child receives gifts because a child cannot earn or achieve them, cannot claim merit, can only receive what is given. The kingdom of God cannot be achieved, earned, or merited — it can only be received. Those who come to it as achievers rather than receivers will not enter.