As the prophetic nature of certain numbers have become more openly discussed and understood in mainstream Christianity, the number 12 remains one of the most important in both Old and New Testament Prophecies.
It represented the Twelve Tribes of Israel as a whole, even when every tribe wasn’t present and accounted for, and was seen in worship in the Tabernacle and Temple, the twelve Apostles, and throughout prophecies regarding the destruction of the First Temple, and many times in the Book of Revelation.
One of the most important aspects of this prophetic number, was the twelve baskets of leftovers gathered after the feeding of the 5,000, fulfilling an important Messianic Prophecy and signifying how Christ had first come to the Jews first, before offering the Bread of Life to the Gentiles.