The Woes on Three Villages express Jesus’ sorrow that Chorazin, Bethsaida and Capernaum had not responded to his warning not to get sucked into the black hole of violent religious nationalism.
Hebrew Nuggets, Lesson 33: Gehenna

In this lesson we will learn one new letter, the Hebrew “g” sound, via the famous Hebrew word “Gehenna.”
Beyond an Inheritance

From the early centuries of the Christian era to our day, expositors of the Gospels have struggled with Jesus’ teachings on the Kingdom of Heaven, particularly with their temporal dimension. Will the Kingdom of Heaven appear one day in the future when the Son of Man suddenly comes? Or, has it been germinating like a seed with much potential for growth? Perhaps as C. H. Dodd suggested, it should be described as both realized and eschatological: germinal in reference to the past (and present), but explosive in regard to its coming manifestation.
The Parable of the Rich Man and Lazarus: Did the Rich Man End Up in Hell or Gehenna? (Luke 16:22)

Mechanically reconstructing to Hebrew Greek texts found in Matthew, Mark and Luke on the basis of Septuagintal equivalents can widely miss the mark.