Original Text
And the twelve portals of the four quarters of the heaven are therewith completed, and all their laws and all their plagues and all their benefactions have I shown to thee, my son Methuselah. LXXVII. The Four Quarters of the World: the Seven Mountains, the Seven Rivers, &c.
Simple English
I have shown you, my son Methuselah, the twelve gates of heaven in all four directions, along with all their rules, punishments, and blessings.