Philippians 2:2
Fulfill ye my joy, that ye be likeminded, having the same love, being of one accord, of one mind.
The basis of the word Fellowship is something that is "common," like a "common Faith" or a "common Salvation." The bulk of the references are of a practical nature, manifesting in deed and by the sharing of Scripture, Prayer, Hope, Love, Expenses, and Blessings, which all shared alike in Grace. The believer should be willing "to communicate" (1 Tim. 6:18), which is used in that passage almost synonymously with readiness "to distribute." The Philippians not only knew about the "Fellowship" of the sufferings of Christ (Phil. 3:10), but they had Fellowship with Paul in The Gospel and the work of the ministry also (Phil. 1:5; 4:15).
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