Appearances of the number twelve
There are twelve names in the Bible that have only two letters. They are Ai (Joshua 7:2), Ar (Num. 21:15), Ed (Joshua 22:34), Er (Genesis 38:3), Ir (1Chronicles 7:12), No (Jeremiah 46:25), Og (Num. 21:33), On (Num. 16:11), Pe (Psalm 119:129), So (2Kings 17:4), Ur (Genesis 11:28) and Uz (Genesis 10:23).
The twelve patriarchs from and including Shem (one of Noah's sons saved in the Ark) to Jacob (Israel) are Shem, Arphaxad, Salah, Heber, Peleg, Reu, Serug, Nahor, Terah, Abraham, Isaac and Jacob.
Solomon appointed twelve officers over Israel.
How is the number 12 related to an anointed service?
Twelve people are specially noted in scripture as being anointed for a unique task or responsibility. They are Aaron and his four sons to serve as priests (Exodus 29:7 - 9) and Saul (1Samuel 10:1), David (1Samuel 16:13) and Solomon (1Kings 1:39) to serve as kings over a united Israel. David's son Absalom, who wanted to take the throne of his David but was killed (2Samuel 19:10), was also anointed by some to be king. The remaining three specially anointed are King Jehu of Israel (2Kings 9:6) and Kings Joash (2Kings 11:12) and Jehoahaz (2Kings 23:30) of Judah.
Additional information on the Biblical Meaning of 12
The Scripture's first recording of Jesus' words occurs when he is twelve years old (Luke 2:42).
The high priest’s breastplate, also called the breast-plate of decision, had twelve stones embedded in it. Each stone represented a tribe of Israel. The Urim and Thummim were part of the High Priest's breastplate. They were primarily used to consult God regarding important matters (1Samuel 28: 3 - 6, Numbers 27:21 and so on). Both the first century historian Josephus and the Talmud identify the Urim and Thummim with the breastplate stones.
Of all the numerals found in scripture, twelve, along with three, four, seven and ten, are unmistakably used in a symbolic fashion in God's word.