Justifier is one translation of the Greek word dikaiōn. It can also be translated “Him who justifies.” The word indicates a person who shows or declares another person to be righteous. Paul points out that, through Jesus (Yeshua‘), God was in a position to be just by punishing sin, but also to be the One who justifies us because He dealt with our guilt.

"God the Justifier" in the Greek text of Romans 8:33. One of the New Testament names for God.

“God the Justifier” in the Greek text of Romans 8:33.

Justifier in Greek:

Ho dikaiōn

Strong’s Concordance number: 1344

Bible references: Rom. 3:26; 4:5; 8:33

To declare, I say, at this time His righteousness: that He might be just, and the justifier of him which believeth in Jesus. (Romans 3:26 KJV)