Who Are These People that Jesus say's to them "I Never Knew You"?

Mat 7:20-23

Therefore by their fruits you will know them. Not everyone who says to Me, 'Lord, Lord,' shall enter the kingdom of heaven, but he who does the will of My Father in heaven. Many will say to Me in that day, Lord, Lord, have we not prophesied in Your name, cast out demons in Your name, and in thy name done many wonderful works? And then I will declare to them, I never knew you; depart from Me, you who practice lawlessness!