2 Timothy 3:1 & 12-17
(1) This know also, that in the last days perilous times shall come.
(12) Yea, and all that will live godly in Christ Jesus shall suffer persecution.
(13) But evil men and seducers shall wax worse and worse, deceiving, and being deceived.
(14) But continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them;
(15) And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
(16) All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
(17) That the man of God may be perfect, throughly furnished unto all good works.

Matthew 5:17-20
(17) Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
(18) For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
(19) Whosoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whosoever shall do and teach them, the same shall be called great in the kingdom of heaven.
(20) For I say unto you, That except your righteousness shall exceed the righteousness of the scribes and Pharisees, ye shall in no case enter into the kingdom of heaven.