Question: what is the significance of the numbers 12 and 1000 in bible symbols?
Answer: The new Jerusalem measures 12,000 stadia on each side (Revelation 21:16), a cube and perfect dwelling place for all of God's people. Twelve is lengthened to 144,000 (12 x 12 x 1,000) in Revelation 7:4; 14:1, 3 and indicates the complete number of God's Israel, the whole Christian community.