The qualities Phillips saw as critical to the Early Church maintaining their faith, hope, love, peace (a partial list of the fruit of the Spirit):
prayer (confession, prayer to access God's resources for change, intercession)
He sees the reading of the letters of the apostles in the churches before the Holy Scriptures were called the Holy Scriptures, as encouragement to continue to read. Interesting. Today we know that the apostles were the apostles. If their day, Jesus, Himself chose them.
He talks about Service and that we need to always look outward. "Coming down to actual practice, the Christian has to ask himself what he can do to express outwardly and effectively his inward spiritual certainty. . .his first duty is to live a Christian life in his home and in his place of work..."
He asks, what if even half the members gave and hour each week to their church . . . (pg 100) He talks about gifts, too.
"..the real danger to professing Christians lies not in the more glaring and grosser temptations and sins, but in a slow deterioration of vision, a slow death to daring, courage and the willingess to adventure."