Proverbs 20:26-28

Amplified Bible

²⁶ 
A wise king sifts out the wicked [from among the good]
And drives the [threshing] wheel over them [to separate the chaff from the grain].
²⁷ 
The ^[a]spirit (conscience) of man is the lamp of the Lord,
Searching and examining all the innermost parts of his being.^(A)
28 
Loyalty and mercy, truth and faithfulness, protect the king,
And he upholds his throne by lovingkindness.