'Unjust' in the Bible

The Pharisee stood and was praying this to himself: ‘God, I thank You that I am not like other people: swindlers, unjust, adulterers, or even like this tax collector.

For God is not unjust so as to forget your work and the love which you have shown toward His name, in having ministered and in still ministering to the saints.

For Christ also died for sins once for all, the just for the unjust, so that He might bring us to God, having been put to death in the flesh, but made alive in the spirit;