1-е Тимофею 3:9

the mystery of the faith--holding the faith, which to the natural man remains a mystery, but which has been revealed by the Spirit to them (Rom 16:25; Co1 2:7-10), in a pure conscience (Ti1 1:5, Ti1 1:19). ("Pure," that is, in which nothing base or foreign is intermixed [TITTMANN]). Though deacons were not ordinarily called on to preach (Stephen and Philip are not exceptions to this, since it was as evangelists, rather than as deacons, they preached), yet as being office-bearers in the Church, and having much intercourse with all the members, they especially needed to have this characteristic, which every Christian ought to have.

In this chapter our apostle treats of church-officers. He specifies, I. The qualifications of a person to be admitted to the office of a bishop (Ti1 3:1-7). II. The qualifications of deacons (Ti1 3:8-10), and of their wives (Ti1 3:11), again of the deacons (Ti1 3:12, Ti1 3:13). III. The reasons of his writing to Timothy, whereupon he speaks of the church and the foundation-truth professed therein (Ti1 3:14 to the end).