V.23-27 This rejection continues; but His wisdom silences them. Their conscience condemns them.
V.28-32 The repentant sinner, not the pretending obedient one, does the will of God. Not very flattering for us!
V.33-43 The man had done everything possible in his vineyard to make it produce fruit, but all failed. A parable which pictures God’s work with Israel. Like the whole of the Old Testament, He sent prophets to Israel, one after another. Then He sent His Son, and they killed Him. But God shall not be disappointed in the end!
V.42 The stone, of course is Christ.
V.44 The Lord Jesus came the first time, and they stumbled over Him, but when He comes the next time in judgment (see your chart “E”), He shall grind the unbelieving to powder.