The Bible warns of false teachers. These are people who claim to have the gift of teaching but
do not teach the true Word of God:
But there were false prophets also among the people, even as there shall be
false teachers among you, who privily shall bring in damnable heresies, even
denying the Lord that bought them, and bring upon themselves swift
destruction. (II Peter 2:1)
For the time will come when they will not endure sound doctrine; but after
their own lusts shall they heap to themselves teachers, having itching ears;
And they shall turn away their ears from the truth, and shall be turned unto
fables. (II Timothy 4:3-4)
...thy teachers have transgressed against me...(Isaiah 43:27)
II Peter chapter 2 and the book of Jude list some of the personal characteristics by which you can
recognize false teachers.
It is possible to have a wrong motive for teaching as well as false doctrine:
Whose mouths must be stopped, who subvert whole houses, teaching things
which they ought not for filthy lucre's sake. (Titus 1:11)
Those who have been taught God's Word should teach faithful believers who will be able to
teach others:
Let him that is taught in the word communicate unto him that teacheth in all
good things. (Galatians 6:6)
And the same thing that thou hast heard of me among many witnesses, the
same commit thou to faithful men, who shall be able to teach others also.
(II Timothy 2:2)
This is the pattern of continuous teaching that, if followed, rapidly multiplies to spread the
Gospel throughout the world.
A person with the spiritual gift of teaching does not teach man's wisdom:
Which things also we speak, not in the word which man's wisdom teacheth,
but which the Holy Ghost teacheth; comparing spiritual things with spiritual.
(I Corinthians 2:13)