Jesus starts this teaching off with a correction of the understanding of divorce: it is not God’s plan, but man’s due to a misunderstanding of God’s picture for marriage. It is to be a selfless union between two followers of His ways. When this fails, divorce is given as a possibility but not the ideal.
Then Jesus teaches that child-like faith is the faith we need.
This then is put to the rest by the rich young ruler who does not credit God with salvation, but his ability to love on his own terms and be rich. Jesus pushes back and the man’s lack of selfless love shows his true heart.
Then the disciples argue about having seats of honor in the final days because they understand selfless love (sarcasm noted). And then Jesus heals Bartimaeus because he has faith in Him. Childlike faith in fact.