The church sends out missionaries: Acts 13:2 (NIV)
2 While they were worshiping the Lord and fasting, the Holy Spirit said, "Set apart for me Barnabas and Saul for the work to which I have called them."
The church is like a body: 1 Corinthians 12:12-13 (NIV)
12 The body is a unit, though it is made up of many parts; and though all its parts are many, they form one body. So it is with Christ. 13 For we were all baptized by one Spirit into one body--whether Jews or Greeks, slave or free--and we were all given the one Spirit to drink.
The church is a family of Christians: Ephesians 2:19-22 (NIV)
19 Consequently, you are no longer foreigners and aliens, but fellow citizens with God's people and members of God's household, 20 built on the foundation of the apostles and prophets, with Christ Jesus himself as the chief cornerstone. 21 In him the whole building is joined together and rises to become a holy temple in the Lord. 22 And in him you too are being built together to become a dwelling in which God lives by his Spirit.
Holy Bible, New Living Translation, (Wheaton, IL: Tyndale House Publishers, 2004), WORDsearch CROSS e-book, Under: "CHURCH".