Jesus taught to receive the Kingdom of God like a little child in Luke 18:15-17.
Luke 18:15-17
[15]Some people brought their babies to Jesus for him to place his hands on them. The disciples saw them and scolded them for doing so,
[16]but Jesus called the children to him and said, “Let the children come to me and do not stop them, because the Kingdom of God belongs to such as these.
[17]Remember this! Whoever does not receive the Kingdom of God like a child will never enter it.”