Amen! However Matthew seven is speaking of Sin in general. While working out our own salvation outside of Christ can be included. Matthew seven is speaking of sin in general
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. A 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. THEREFORE whosoever heareth these sayings of mine, AND DOETH THEM, I will liken him unto a wise man, which built his house upon a rock:
(Mat 7:15-24 KJV)
In summary....
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. Depart from me, ye that work iniquity. THEREFORE (for that reason; consequently ) whosoever heareth these sayings of mine, AND DOETH THEM, I will liken him unto a wise man, which built his house upon a rock:
In other words Not doing the sayings of Jesus, the will of the FATHER is bad fruit; iniquity.