Thematic Bible: Professing but not practising

These come unto thee, after the manner of a great people: yea, my people sit down before thee, and hear thy words, but they do not thereafter: for in their mouths they show themselves, as though they were fervent, but their heart goeth after their own covetous lucre. And as a ballad that hath a sweet tune, and is pleasant to sing, so shalt thou be unto them: thy words shall they hear, but they will not do thereafter.