'Righteous One' in the Bible

You, I say, disowned the Holy and Righteous One, and asked for the release of a murderer!

Which of the Prophets escaped persecution at their hands? They killed those who foretold the coming of the Righteous One; of whom you, in your turn, have now become the betrayers and murderers--

Then he said 'The God of our ancestors has appointed you to learn his will, and to see the Righteous One, and to hear words from his lips;