Charles Spurgeon Commentary Job 33:3

"My words [shall utter] the uprightness of my heart; And that which my lips know they shall speak sincerely." — Job 33:3 (ASV)

What a lesson this is to those of us who preach to others—that we speak out of the uprightness of our heart, and feel that, however others may judge us, we are sincere before God in what we say!

How necessary it is also, especially in these days, that we should speak plainly, so as to be easily understood! Some men never think clearly, and therefore they never speak clearly; and often, the darkness of a man's speech is only the result of the darkness of his mind; he has no clearly-defined notion of what he has to say. Let every young man who has to teach others resolve that this utterance of Elihu shall also be his: My lips shall utter knowledge clearly.