Though Jesus taught that faith, simple childlike belief, is the key to the door of the kingdom, he also taught that, having entered the door, there are the progressive steps of righteousness which every believing child must ascend in order to grow up to the full stature of the robust sons of God.
Close in meaning, found by a language model. A match does not mean the teachings are the same.
Jesus called a little child to himself, and set him in the middle of them and said, “Most certainly I tell you, unless you turn and become as little children, you will in no way enter into the Kingdom of Heaven. Whoever therefore humbles himself as this little child is the greatest in the Kingdom of Heaven. Whoever receives one such little child in my name receives me, but whoever causes one of these little ones who believe in me to stumble, it would be better for him if a huge millstone were hung around his neck and that he were sunk in the depths of the sea.
They were also bringing their babies to him, that he might touch them. But when the disciples saw it, they rebuked them. Jesus summoned them, saying, “Allow the little children to come to me, and don’t hinder them, for God’s Kingdom belongs to such as these. Most certainly, I tell you, whoever doesn’t receive God’s Kingdom like a little child, he will in no way enter into it.”
The disciples were amazed at his words. But Jesus answered again, “Children, how hard it is for those who trust in riches to enter into God’s Kingdom! It is easier for a camel to go through a needle’s eye than for a rich man to enter into God’s Kingdom.”