“A just balance and scales are the Lord’s; all the weights in the bag are his work.” (Proverbs 16:11)
And, God doesn’t have the sacred / secular distinction that many today have, in the sense of implying that the secular arena is insignificant and unimportant. For God is not only the one who is ultimately behind all justice; he actually takes delight in it:
“A false balance is an abomination to the Lord, but a just weight is his delight.” (Proverbs 11:1)
For more on this, see John Piper’s sermon “The Pleasure of God in Public Justice.”