Holy and Righteous One is one way to translate this Greek phrase. The Greek word dikaios can also be translated as “Just One,” the idea underlying the KJV. The phrase is one of the names of Jesus (Yeshua‘) in the New Testament. Jesus was both righteous and holy, so the title describes Him well.
Holy and Righteous One in Greek:
Ho hagios kai dikaios
Strong’s Concordance numbers: 40, 1342
Bible reference: Acts 3:14
You disowned the Holy and Righteous One and asked that a murderer be released to you. (Acts 3:14 NIV)
The KJV has “the Holy and the Just.”