Proverbs 16:13

Righteous lips are the delight of kings, and they love him who speaks right.

Proverbs 14:35

The king's favor is toward a servant who deals wisely, but his wrath will be [to] him who causes shame.

Proverbs 22:11

He who loves pureness of heart, [for] the grace of his lips, the king will be his friend.

Psalm 101:5-7

He who slanders his neighbor secretly, him I will destroy. He who has a high look and a proud heart I will not endure.

Treasury of Scripture Knowledge

Summary

Righteous lips are the delight of kings; and they love him that speaketh right.

Bible References

General references

Proverbs 14:35
The king's favor is toward a servant who deals wisely, but his wrath will be [to] him who causes shame.
Proverbs 22:11
He who loves pureness of heart, [for] the grace of his lips, the king will be his friend.
Psalm 101:5
He who slanders his neighbor secretly, him I will destroy. He who has a high look and a proud heart I will not endure.