We Love God!

God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)

The word 'fellowship' in the New Testament (as in Acts 2:42) is a translation of the Greek word 'koinonia.' At its root 'koinonia' describes two or more people in close association and often speaks of these people as sharing in something, such as a marriage or business. Christian 'koinonia' exists between everyone who knows God through Jesus Christ (see 1 John 1:3). Everyone united with Christ by faith is also united with everyone else united with Christ. The same Holy Spirit indwells all believers and gives each a common share in the body of Christ, the church. As the apostle Paul put it, 'For by one Spirit we were all baptized into one body...and all have been made to drink into one Spirit' (1 Corinthians 12:13).
Donald S. Whitney

The root of both psychological and spiritual sickness is preoccupation with self. Ironically, the believer who is consumed with his own problems – even his own spiritual problems – to the exclusion of concern for other believers, suffers from a destructive self-centeredness that not only is the cause of, but is the supreme barrier to the solution of, his own problems. Usually such selfishness isolates him from the other believers, who if they were intimately involved in fellowship with him, would be regularly praying for his spiritual welfare.
John MacArthur