Where does it say in scripture that God must be “fair”
Deuteronomy 32:4 --- He is the Rock, His work is perfect;For all His ways are justice, A God of truth and without injustice; Righteous and upright is He.
Psalm 7:11 -- God is a just judge,And God is angry with the wicked every day.
Isaiah 30:18 -- Therefore the LORD will wait, that He may be gracious to you; And therefore He will be exalted, that He may have mercy on you. For the LORD is a God of justice; Blessed are all those who wait for Him.
Isaiah 45:21 -- Tell and bring forth your case;Yes, let them take counsel together. Who has declared this from ancient time? Who has told it from that time? Have not I, the LORD? And there is no other God besides Me, A just God and a Savior; There is none besides Me.
Acts 22:14 -- Then he said, The God of our fathers has chosen you that you should know His will, and see the Just One, and hear the voice of His mouth.
1Peter 3:18 -- For Christ also suffered once for sins, the just for the unjust, that He might bring us to God, being put to death in the flesh but made alive by the Spirit,
Revelations 15:3 -- They sing the song of Moses, the servant of God, and the song of the Lamb, saying: Great and marvelous are Your works, Lord God Almighty! Just and true are Your ways, O King of the saints!