New Revised Standard Version
Whoever belittles another lacks sense, but an intelligent person remains silent.

Contemporary English Version
It's stupid to say bad things about your neighbors. If you are sensible, you will keep quiet.

New American Bible
Whoever reviles a neighbor lacks sense, but the intelligent keep silent.

Douay-Rheims Bible
He that walketh deceitfully, revealeth secrets: but he that is faithful, concealeth the thing committed to him by his friend.

He that walketh deceitfully, revealeth secrets: but he that is faithful, concealeth the thing committed to him by his friend.

that

Judges 9:27-29,38 Went out into the fields, wasting the vineyards, and treading down the grapes: and singing and dancing, they went into the temple of their god, and in their banquets and cups they cursed Abimelech. . . .

Nehemiah 4:2-4 And said before his brethren, and the multitude of the Samaritans: What are the silly Jews doing? Will the Gentiles let them alone? will they sacrifice and make an end in a day? are they able to raise stones out of the heaps of the rubbish, which are burnt? . . .

Psalm 123:3,4 Have mercy on us, O Lord, have mercy on us: for we are greatly filled with contempt. . . .

Luke 16:14 Now the Pharisees, who were covetous, heard all these things: and they derided him.

Luke 18:9 And to some who trusted in themselves as just and despised others, he spoke also this parable:

John 7:48-52 Hath any one of the rulers believed in him, or of the Pharisees? . . .

void of wisdom

Proverbs 10:19 The tongue of the just is as choice silver: but the heart of the wicked is nothing worth.

1 Samuel 10:27 But the children of Belial said: Shall this fellow be able to save us? And they despised him, and brought him no presents; but he dissembled as though he heard not.

2 Kings 18:36 But the people held their peace, and answered him not a word: for they had received commandment from the king that they should not answer him.

1 Peter 2:23 Who, when he was reviled, did not revile: when he suffered, he threatened not, but delivered himself to him that judged him unjustly.