teachers are held to an even higher standard and require even more mature walk with Christ and sanctification as well as the unction of the Holy Spirit is a requirement of any good teacher/pastor.
I found these verses interesting...
Psalm 119:98-100
New King James Version (NKJV)
98 You, through Your commandments, make me wiser than my enemies;
For they are ever with me.
99 I have more understanding than all my teachers,
For Your testimonies are my meditation.
100 I understand more than the ancients,
Because I keep Your precepts.
1 Timothy 1:5-8
New King James Version (NKJV)
5 Now the purpose of the commandment is love from a pure heart, from a good conscience, and from sincere faith, 6 from which some, having strayed, have turned aside to idle talk, 7 desiring to be teachers of the law, understanding neither what they say nor the things which they affirm.
8 But we know that the law is good if one uses it lawfully,
James 3
1 My brethren, let not many of you become teachers, knowing that we shall receive a stricter judgment. 2 For we all stumble in many things. If anyone does not stumble in word, he is a perfect man, able also to bridle the whole body. 3 Indeed,[a] we put bits in horses’ mouths that they may obey us, and we turn their whole body.