The Greek in Luke 11:20 that echoes Exodus 8:19 is translated as “the finger of God” or similar in English is translated in the German New Testament translation by Berger / Nord (publ. 1999) with Gottes Finger, seine Kraft or “the finger of God, his power.”
In Adioukrou it is translated as “the power of God.” (Source: Hill 2006)