By: Louis Rushmore, Editor

Someone posed the question, “Why did Jesus wait until he was thirty before starting his ministry?” Let me ask another question, “Why didn’t Jesus begin His public and earthly ministry when He was 12?” At that young age, “Jesus lingered behind in Jerusalem” (Luke 2:41–44) when Joseph and Mary began their journey back to Nazareth. They found Him, after three days of searching, locked in a discussion with Jewish scholars in the Temple (Luke 2:46–47). Obviously, those Jewish teachers, who “were astonished at His understanding and answers” (v. 47), did not expect that from a 12-year-old boy. It is just as a surety that neither did Joseph and Mary expect such from one so young (vs. 48–50). It’s safe to say that 12-year-olds lacked credibility essential to begin the most important ministry ever before, at that time or since. His superior knowledge of God’s Word, though, was an inkling of what lie ahead in the life of Jesus.

“‘Twelve years old’ would have been one year before Jesus officially became an adult Israelite and accepted responsibility for fulfilling the law” (Keener, “Luke 2:42”). “The coming of faith is described in terms of coming of age, when a boy would achieve adulthood (about thirteen or fourteen years old in various Mediterranean cultures)” (Keener, “Galatians 3:25”). “…Men entered adulthood around puberty…this term for ‘youth’ (KJV) could apply up to the age of forty, although it usually applied especially to someone under twenty-nine” (Keener, “1 Timothy 4:12”). Rabbi Jehudah outlined Jewish age brackets.

At five years of age, reading of the Bible; at ten years, learning the Mishnah; at thirteen years, bound to the commandments; at fifteen years, the study of the Talmud; at eighteen years, marriage; at twenty, the pursuit of trade or business (active life); at thirty years, full vigour; at forty, maturity of reason; at fifty, of counsel; at sixty, commencement of agedness; at seventy, grey age; at eighty, advanced old age; at ninety, bowed down; at a hundred, as if he were dead and gone, and taken from the world. (“The Upbringing of Jewish Children”)

Thirty years old entitled a Jewish man in the first century to be a teacher. “Being thirty years old when He [Jesus] came to be baptized, and then possessing the full age of a Master [teacher]” (Ante-Nicene Fathers, Volume 1). In the Old Testament at Numbers 4:3ff, Jewish men had to be from 30 years old up to 50 years old to serve in the tent of meeting. In 1 Chronicles 23:3, the Levites were numbered 30 years old and older. Jewish tradition and Judaism denoted thirty years old as when a Levite could minister, and correspondingly, John the Baptist and Jesus Christ began their respective and overlapping ministries also at the age of thirty.

Even when our Lord did begin His ministry, his own family did not believe in Him. “Then he went home, and the crowd gathered again, so that they could not even eat. And when his family heard it, they went out to seize him, for they were saying, ‘He is out of his mind’” (Mark 3:20–21 ESV). “He came to His own, and His own did not receive Him” (John 1:11 NKJV). “For even His brothers did not believe in Him” (John 7:5).

While He was still talking to the multitudes, behold, His mother and brothers stood outside, seeking to speak with Him. Then one said to Him, “Look, Your mother and Your brothers are standing outside, seeking to speak with You.” But He answered and said to the one who told Him, “Who is My mother and who are My brothers?”

And He stretched out His hand toward His disciples and said, “Here are My mother and My brothers! For whoever does the will of My Father in heaven is My brother and sister and mother.” (Matthew 12:46-50).

In summary, had even Jesus Christ attempted to begin His public ministry when he was twelve years old or at any other time prior to attaining the age of thirty, apparently, neither God in Heaven nor Jewish culture would have recognized His right to be a teacher. Thirty years old was the minimum age when a Jewish man in the first century could assume the posture and the stature as a proclaimer of God’s Word.

Works Cited

Ante-Nicene Fathers, Volume 1. Electronic Database. Seattle: Biblesoft, 2006.

“Chapter Seven: The Upbringing of Jewish Children.” Sketches of Jewish Social Life. Electronic Database. Seattle: Biblesoft, 2006.

Keener, Craig S. “1 Timothy 4:12.” IVP Bible Background Commentary: New Testament.  Electronic Database. Downers Grove: InterVarsity P., 1993.

Keener, Craig S. “Galatians 3:25.” IVP Bible Background Commentary: New Testament.  Electronic Database. Downers Grove: InterVarsity P., 1993.

Keener, Craig S. “Luke 2:42.” IVP Bible Background Commentary: New Testament.  Electronic Database. Downers Grove: InterVarsity P., 1993.

Author: Louis Rushmore