The Lord commanded that we cooperate, preserve harmony, and align our public worship services for the upbuilding of His church.1. We cooperate with the use of our spiritual gifts for upbuilding the church. (v.26-33)2. We preserve harmony in the church. (v.34-35)3. We align worship with God's Word and with God's other churches. (v.36-40)What is edifying to the church?What builds us up in faith, stir us to act, and cheer us? Acts 2:42What ministries are helpful to us as believers? Is. 66:2Test: is this constructive for God's people? Jn 8:31 & 1 Jn 4:6