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 7:21-23)

If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
(John 7:17)

Note: Doctrine means teachings

All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, throughly furnished unto all good works.
(2 Timothy 3:16-17)

Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.
(Colossians 2:8)

And to love him with all the heart, and with all the understanding, and with all the soul, and with all the strength, and to love his neighbour as himself, is more than all whole burnt offerings and sacrifices.
(Mark 12:33)

What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.
(1 Corinthians 14:15)

For God is not the author of confusion, but of peace, as in all churches of the saints.
(1 Corinthians 14:33)

For where envying and strife is, there is confusion and every evil work.
(James 3:16)

Howbeit in vain do they worship me, teaching for doctrines the commandments of men.
(Mark 7:7)

And he said unto them, Full well ye reject the commandment of God, that ye may keep your own tradition.
(Mark 7:9)

Making the word of God of none effect through your tradition, which ye have delivered: and many such like things do ye.
(Mark 7:13)

Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.
(Matthew 4:10)

And as Peter was coming in, Cornelius met him, and fell down at his feet, and worshipped him. But Peter took him up, saying, Stand up; I myself also am a man.
(Acts 10:25-26)

For I bear them record that they have a zeal of God, but not according to knowledge. For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.
(Romans 10:2-3)