James 3:1

James now makes a point that not many of them should become teachers. The reason for this is because teachers will be judged with greater strictness. He had just finished making a point that faith apart from works is dead. Perhaps not all of them knew this and some were teaching the exact opposite of this truth. Some weren't teaching correctly and thus under this stricter judgment. In addition, not all can handle this pressure and responsibility. It is a weighty thing to be responsible for teaching others, and it should be treated with care.