Proverbs 20:28
"Mercy and truth preserve the king: and his throne is upholden by mercy."
Cross References (ranked by relevance)
It is an abomination to kings to commit wickedness: for the throne is established by righteousness.
Judge me, O LORD; for I have walked in mine integrity: I have trusted also in the LORD; therefore I shall not slide.
The king that faithfully judgeth the poor, his throne shall be established for ever.
I will sing of mercy and judgment: unto thee, O LORD, will I sing.
By mercy and truth iniquity is purged: and by the fear of the LORD men depart from evil.
For the king trusteth in the LORD, and through the mercy of the most High he shall not be moved.
He shall abide before God for ever: O prepare mercy and truth, which may preserve him.
And in mercy shall the throne be established: and he shall sit upon it in truth in the tabernacle of David, judging, and seeking judgment, and hasting righteousness.