Isaiah 8:20
To the law and to the testimony: if they speak not according to this word,
it is because there is no light in them.

Proverbs 14:15
The simple believeth every word: but the prudent man looketh well to his going.

Matthew 7:16-20
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.

Romans 8:15
For ye have not received the spirit of bondage again to fear;
but ye have received the Spirit of adoption, whereby we cry, Abba, Father.

1 Cor. 12:3
Wherefore I give you to understand, that no man speaking by the Spirit of God calleth
Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost.

1 Cor. 14:6
Now, brethren, if I come unto you speaking with tongues, what shall I profit you,
except I shall speak to you either by revelation, or by knowledge,
or by prophesying, or by doctrine?

2 Peter 1:20-21
Knowing this first, that no prophecy of the scripture is of any private interpretation.
 For the prophecy came not in old time by the will of man:
but holy men of God spake as they were moved by the Holy Ghost.

Rev. 19:10
And I fell at his feet to worship him. And he said unto me, See thou do it not:
I am thy fellow servant, and of thy brethren that have the testimony of Jesus:
worship God: for the testimony of Jesus is the spirit of prophecy.