These who are so active in drawing sin to themselves are emboldened by their worldly success. They are so sure of their position in the world that they can sarcastically say to those who warn them of the wrath of the Lord, that it should be brought on. These are the ones who would ask the prophets for a sign. These are they who would ask of God as Satan did of Christ "if thou art Christ" and then ask for proof.
The context is critical for this verse, because the words in and of themselves are good. The righteous look forward to the day of the Lord. It is the context that tells us that these "good words" are being used sarcastically. Rather than being the hope the faithful, they rather express the doubt and derision of those who do not believe that the day of the Lord will come, and therefore mockingly call for it, having faith rather that it will not come.