What does the Bible say about divine mysteries?

In the New Testament, the term 'mystery' signifies truth that is beyond human comprehension and can only be made known through divine revelation. The Apostle Paul frequently refers to mysteries concerning the kingdom of God and salvation, emphasizing that these truths were hidden in ages past but are now revealed by the Spirit to the saints (Ephesians 1:9, Colossians 1:26). Mysteries include the person of Christ, the nature of the gospel, and God's eternal purpose in bringing both Jews and Gentiles into one body by faith.