“Make your way of life a robe which is woven together from good moral conduct and correct doctrine…Take heed to yourself and to the doctrine. Continue in them, for in doing this you will save both yourself and those who hear you.” (St. John Chrysostom, St. Paul)
“The mark of the true church is not merely right doctrine, but right actions, the true evidence of the Holy Spirit’s work…Right doctrine should produce right practice.” (Life Application Study Bible, Acts 19:2-4, Foundation Study Bible, 2 Timothy 3:17)
“...you can have all the sound doctrine possible and be fastidiously performing your ethical and religious duties according to biblical principles and have “no grace in the heart at all.” (Pastor Timothy Keller)
“Doctrine, ethics, and worship are interrelated and supply the bases of the religious life. All three are areas where religion makes demands upon life. Thus, one cannot say that one need not be concerned with morality. Neither can one say that, if one possesses morality and belief in God, one need not worship.” (Demetrios J. Constantelos)
“A crown of goodness is a pure faith, adorned with eloquent doctrine, and with spiritual principles and intellections, as if with precious stones, and set as it were on the head of the devout intellect.” (St. Maximos the Confessor)