Library E. W. Bullinger Number in Scripture
Part II — Spiritual Significance
Thirty
being 3 x 10, denotes in a higher degree the perfection of Divine order, as marking the right moment. CHRIST was thirty years of age at the commencement of His ministry, Luke 3:23.
JOSEPH, His type, was the same age, Genesis 41:46.
DAVID also, when he began to reign, 2 Samuel 5:4.
E. W. Bullinger, Number in Scripture: Its Supernatural Design and Spiritual Significance, fourth edition revised (London: Eyre & Spottiswoode, 1921). Public domain. Sectioned HTML transcription via Levend Water; bibliographic record and page scan of the 1894 edition from the Claremont School of Theology collection via Internet Archive.