Nibiru is often mentioned as Planet X in modern times. As far as we know now it really exist and is often discussed by Astronomers all over the world, including NASA.
Quotes from the Bible:
"From a far away land they came, from the end-point of Heaven do the Lord and his weapons of wrath come to destroy the whole Earth. Therefore will I agitate the Heaven and Earth shall be shaken out of its place. When the Lord of Hosts shall be crossing, the day of his burning wrath."
Isaiah 13:1.
A far away land from the end point of Heaven?, I hope the reader now know what the meaning of this verse is, a cosmic catastrophe in ancient times.
"Then I saw a new heaven and a new earth, for the first heaven and the first earth had passed away. Now the dwelling of God is with men, and he will live with them. They will be his people, and God himself will be with them and be their God. He will wipe every tear from their eyes. There will be no more death or mourning or crying or pain, for the old order of things has passed away."