I know you not.., I never knew you

And while they went to buy, the bridegroom came; and they that were ready went in with him to the marriage: and the door was shut.

Afterward came also the other virgins, saying, Lord, Lord, open to us.

But he answered and said, Verily I say unto you, I know you not.

Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh.

Matthew 25:10-13

Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.

Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?

Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.

18A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.

Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.

Wherefore by their fruits ye shall know them.

Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.

Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?

And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.

Matthew 7:15-23.