TO ARGUE A CASE OUT, to reach a judgment between parties — a LEGAL verb (it is what a judge, an arbiter or a reprover does), and in Isaiah 1:18 it stands in the reciprocal form: let the two sides settle it. ⚠ The KJV's 'let us reason together' has given generations a picture of a quiet conversation; the setting since verse 2 has been a courtroom, with heaven and earth summoned as witnesses. Job uses the same verb for wanting to argue his case with God (13:3). → first discussed at Isaiah 1:18