Proper doctrine and proper teaching of that doctrine that results in a good understanding of it is indispensable to a healthy church, that is, to a healthy Christian community.
We cannot build together unless we have common values, and these values are given to us and imbedded in us by the preaching of the Word of God. A huge reason for the success of the early church was the indwelling Holy Spirit and the daily preaching of the Word of God. The following Scriptures will explain how the most formidable community the world has ever known developed. Yes, I believe that the Christian community began as the first and only unconquerable community/kingdom this world has ever witnessed.
“Therefore let all the house of Israel know assuredly that God has made this Jesus, whom you crucified, both Lord and Christ. Now when they heard this, they were cut to the heart, and said to Peter and the rest of the apostles, ‘Men and brethren, what shall we do?’ Then Peter said to them, ‘Repent, and let every one of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit” (Acts 2:36-38).
Through the preaching of the Word of God, the community of believers in God through Jesus Christ was formed. It was not through clever marketing strategies or by anything secular, but by the Word of God accompanied by the Spirit of God! They are inseparable. These hearers were, “cut to the heart,” they were repentant, they were baptized in the name of Jesus Christ for the remission of sins, and they received the free gift of the Holy Spirit. In this, we see commonality in all things. The preaching of the Word of God, baptism in the name of Jesus, and the indwelling of the Holy Spirit form them into a community. All of this comes with supernatural enablement, that is, through divine intervention. Therefore, we can safely say that the Lord Jesus Himself initiated this community that has a Heavenly origin- a Heavenly genesis.
“And with many other words he testified and exhorted them, saying, ‘Be saved from this perverse generation.’ Then those who gladly received his word were baptized; and that day about three thousand souls were added to them. And they continued steadfastly in the apostles’ doctrine and fellowship, in the breaking of bread, and in prayers. Then fear came upon every soul, and many wonders and signs were done through the apostles. Now all who believed were together, and had all things in common […] So continuing daily with one accord in the temple, and breaking bread from house to house, they ate their food with gladness and simplicity of heart, praising God and having favor with all the people. And the Lord added to the church daily those who were being saved” (Acts 2:40-47).
These believers had now become a community by the Word of God and the empowerment of the Holy Spirit.