Sirach 4:25

25 In no wise speak against the truth; but be abashed of the error of thine ignorance.

Sirach 4:25 In-Context

23 And refrain not to speak, when there is occasion to do good, and hide not thy wisdom in her beauty.

24 For by speech wisdom shall be known: and learning by the word of the tongue.

25 In no wise speak against the truth; but be abashed of the error of thine ignorance.

26 Be not ashamed to confess thy sins; and force not the course of the river.

27 Make not thyself an underling to a foolish man; neither accept the person of the mighty.