It is from this perspective that Paul urged Titus with a final and essential qualification for church leaders: they “must hold firm to the trustworthy word as taught” (Titus 1:9).

正是從這個角度出發，保羅向提多提出了教會領袖的最後一項基本資格要求：“堅守所教真實的道理”（多 1:9）。

===

KJV: Holding fast the faithful (pistos) word （logos）as he hath been taught (didachē), that he may be able by sound （hygiainō）doctrine （didaskalia）both to exhort and to convince the gainsayers.

“堅守所教（didachē）真實的（pistos）道理（logos），就能將純正的（hygiainō）教訓（didaskalia，教義）勸化人。又能把爭辯的人駁倒了。”（多1:9）

===

But in vain they do worship me, teaching （didaskō） for doctrines（didaskalia）the commandments of men.

太15:9，他們將人的吩咐，當作道理（didaskalia）教導（didaskō）人，所以拜我也是枉然。