*Luke 6:37 Judge not, and ye shall not be judged:

*Jesus contrasts a negative command verb ("judge/condemn not") with an extreme negative verb of possibility that forms an extreme positive ("might NEVER be judged/condemned"). See this article on Jesus's use of repetition and exaggeration in humor. Throughout the verse, the "and" is repeated to further emphasize the repetition and exaggeration. The initial verb, "judge," has a range of meanings including "to judge" in a court, but it primary meaning is to "separate," "sever," and "distinguish" as in dividing people into two groups.

The punchline is not the Greek word normally translated as "forgive." Its primary meaning is "untie," "let go," and "set free." The command is positive, "set free," and the last verb is the future tense, "will be set free."