The Pharisees refused to recognize either John the Baptist or the Lord Jesus Himself as messengers of God. Each of them, despite all their differences, displeased the Pharisees in some way. John the Baptist displeased them with his asceticism and his call to renew faith. The Lord... The Lord pleased them in nothing, in particular because He did not reject the repentance of sinful people whom the Pharisees considered doomed to perdition.
In reality, of course, behind this stood an unwillingness to accept the Good News, first of all because the Pharisees most wanted to look better than everyone else in their own eyes. The Gospel gives neither them nor anyone else such an opportunity. The Lord applies to them the image of children who do not weep at sad songs and do not rejoice at joyful ones. God, the Lord is saying by this, tries to communicate His word, His will, the Good News to the Pharisees in this way and that, by many different paths. But they react to nothing, and this reveals precisely their unwillingness to respond to God's call.
The point is not what John the Baptist is like or what Jesus Himself is like. Those who seek the Word of God will in one way or another be able to find and accept it, the Lord concludes with His words, "wisdom is justified by her children": some came to Christ through the Baptist's preaching, others recognized the Savior in Him for themselves... Whoever has ears and wants to hear will hear.
In our time this Gospel fragment remains exceptionally relevant. People often say: "I would believe, but..." Something is always unsatisfactory to the person who does not want to believe. Either there is too much bad in the Bible, since the truth about history is written there, or Christians are bad, or the commandments are strange... Christ's words apply precisely to such a position.
