'Upright' in the Bible

Then Pharaoh sent for Moses and Aaron, and said to them, I have done evil this time: the Lord is upright, and I and my people are sinners.

Keep yourselves far from any false business; never let the upright or him who has done no wrong be put to death: for I will make the evil-doer responsible for his sin.

Take no rewards in a cause: for rewards make blind those who have eyes to see, and make the decisions of the upright false.