As we saw in the REALLY BIG picture, God intends to demonstrate his wisdom through the church. To do this he equipped people to build up the church.
His intent was that now, through the church, the manifold wisdom of God should be made known to the rulers and authorities in the heavenly realms, according to his eternal purpose that he accomplished in Christ Jesus our Lord. (Ephesians 3:10-11 NIV)
In order to build up his church, Christ gave leaders to equip the people to grow to maturity.
So Christ himself gave the apostles, the prophets, the evangelists, the pastors and teachers, to equip his people for works of service, so that the body of Christ may be built up until we all reach unity in the faith and in the knowledge of the Son of God and become mature, attaining to the whole measure of the fullness of Christ. (Ephesians 4:11-13 NIV)
In order to build up the church, it is first necessary to help members grow into maturity.
He is the one we proclaim, admonishing and teaching everyone with all wisdom, so that we may present everyone fully mature in Christ. (Colossians 1:28 NIV)
What are the characteristics of a mature believer? The Apostle Paul described them in his letter to young Pastor Timothy.
Here is a trustworthy saying: Whoever aspires to be an overseer desires a noble task. Now the overseer is to be above reproach, faithful to his wife, temperate, self-controlled, respectable, hospitable, able to teach, not given to drunkenness, not violent but gentle, not quarrelsome, not a lover of money. He must manage his own family well and see that his children obey him, and he must do so in a manner worthy of full respect. (If anyone does not know how to manage his own family, how can he take care of God’s church?) He must not be a recent convert, or he may become conceited and fall under the same judgment as the devil. He must also have a good reputation with outsiders, so that he will not fall into disgrace and into the devil’s trap. In the same way, deacons are to be worthy of respect, sincere, not indulging in much wine, and not pursuing dishonest gain. They must keep hold of the deep truths of the faith with a clear conscience. They must first be tested; and then if there is nothing against them, let them serve as deacons. In the same way, the women are to be worthy of respect, not malicious talkers but temperate and trustworthy in everything. A deacon must be faithful to his wife and must manage his children and his household well. Those who have served well gain an excellent standing and great assurance in their faith in Christ Jesus. (1 Timothy 3:1-13 NIV)
The Apostle Paul also specified similar characteristics in his letter to Pastor Titus..
The reason I left you in Crete was that you might put in order what was left unfinished and appoint elders in every town, as I directed you. An elder must be blameless, faithful to his wife, a man whose children believe and are not open to the charge of being wild and disobedient. Since an overseer manages God’s household, he must be blameless–not overbearing, not quick-tempered, not given to drunkenness, not violent, not pursuing dishonest gain. Rather, he must be hospitable, one who loves what is good, who is self-controlled, upright, holy and disciplined. He must hold firmly to the trustworthy message as it has been taught, so that he can encourage others by sound doctrine and refute those who oppose it. (Titus 1:5-9 NIV)
So, God’s goal for the church and each individual member is maturity in Christ. The process of growth is discipleship and involves progressive sanctification.