The basic meaning of fellowship (koinonia in Greek) is to have something in common. To have fellowship with Christ means being united with Him and participating in His life: in His sufferings, humility, blessings or glory. The fellowship of believers happens because they participate in the common faith in Jesus Christ and live according to the truth revealed in God’s Word. Those who have embraced the “Word of Life” have fellowship with God and with one another. Believers in Jesus Christ are brothers and sisters irrespective of their racial, social or economic backgrounds.
1 John 1:6-7 If we claim to have fellowship with him yet walk in the darkness, we lie and do not live by 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, his Son, purifies us from all sin.
Our fellowship with God and one another is premised on the fact that we are walking in the light. We cannot be walking in our own ways and at the same time claim to be in fellowship with God. Just as physical light dispels darkness and illuminates the surroundings; Jesus Christ is the light of the world. Apostle John uses the imagery of light to demonstrate the absolute holiness of God. To walk in the light means living according to God’s righteous standards. This involves accepting our sins, confessing them, turning away from them and walking in God’s ways. Forgiveness of sins is made possible by the finished work of Jesus Christ on the cross.