1: The Use of the Greek Term "Koinonia"
Quick definitions of the term
Strongs (QuickVerse), 2842. koinonia, koy-nohn-ee'-ah; from G2844; partnership, i.e. (lit.) participation, or (social) intercourse, or (pecuniary) benefaction:--(to) communicate (-ation), communion, (contri-), distribution, fellowship.
NASC Dictionary, G2842. koinwnia, from G2844; fellowship:-- contribution(2), fellowship(12), participation(2), sharing(3).
Importance of the physical/spiritual distinction.
Verses in New Testament that include Greek Term - Koinonia
Acts 2:42, "they continued steadfastly in the apostles' doctrine and fellowship,"
Romans 15:26, "For it pleased those from Macedonia and Achaia to make a certain contribution for the poor among the saints who are in Jerusalem."
1 Cor. 1:9, "...you were called into the fellowship of His Son,"
1 Cor. 10:16, "is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?
2 Cor. 6:14, "And what communion has light with darkness?"
2 Cor. 8:4, "we would receive the gift and the fellowship of the ministering to the saints."
2 Cor. 9:13, "they glorify God for the obedience of your confession to the gospel of Christ, and for your liberal sharing with them and all men,"
2 Cor. 13:14, "the communion of the Holy Spirit be with you all."
Gal. 2:9, "me, they gave me and Barnabas the right hand of fellowship, that we should go to the Gentiles and they to the circumcised."
Eph. 3:9, "and to make all see what is the fellowship of the mystery,"
Phi. 1:5, "I thank my God... for your fellowship in the gospel from the first day until now,"
Phi. 2:1, "Therefore if there is any consolation in Christ, if any comfort of love, if any fellowship of the Spirit,..."
Phi. 3:10, "that I may know Him and the power of His resurrection, and the fellowship of His sufferings,"
Philemon 6, "that the sharing of your faith may become effective..."
Hebrews 13:16, "But do not forget to do good and to share, for with such sacrifices God is well pleased."
1 John 1:3, "that you also may have fellowship with us; and truly our fellowship is with the Father and with His Son Jesus Christ.
1 John 1:6-7, "If we say that we have fellowship with Him, and walk in darkness, we lie and do not practice the truth. But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin.