And he came to the second, and said likewise. They say unto him, The first. Jesus saith unto them, Verily I say unto you, That the publicans and the harlots go into the kingdom of God before you. The one son didn't want to work, but after saying no, went and did what the father wanted. He told the father what he wanted to hear in order to pacify him while never intending to do what he said.
Broken promises are very typical of the sloth.
Jesus said that boy will have to hold the door open while the harlots and publicans went in first. The sloth will entwine evasive thoughts to protect his slothfulness, and to restrain further inquiries into his activities, motives and true intentions, or so his deceits won't be uncovered. Hemming and hawing, he builds this hedge with thorns, and almost anything will come out from his heart. All of this is to keep the inquirer at a distance, from getting to close. If one does, the ultimate response is anger as a shutdown or control measure followed by silence.