This message shows that Jesus hears everyone, but in fact responds in different ways. He is willing to receive those who come humbly, but will allow some to turn away and others will oppose, because they refuse to humble themselves. On the other hand, He is willing to receive the most unlikely.
16 But Jesus called them to him, saying, “Let the children come to me, and do not hinder them, for to such belongs the kingdom of God.
Luke 18:16 English Standard Version (ESV)