But you are a chosen people, a royal priesthood, a holy nation, God's special possession, that you may declare the praises of him who called you out of darkness into his wonderful light.
1 Peter 2:9
The church is called to be a witness, and a witness is one who declares and demonstrates.
Notice the structure, You are … that you may.
This is our primary task as Christians.
We are indwelt by Jesus Christ so that we may demonstrate the life and character of the One who lives within.
The responsibility to fulfill this calling of the church belongs to every true Christian.
All are called, all are indwelt by the Holy Spirit, all are expected to fulfill their calling in the midst of the world.
The expression of the church's witness may sometimes be corporate, but the responsibility to witness is always individual.
It is your individual responsibility and mine.
But here a problem re-emerges: the problem of possible counterfeit Christians. It is easy for the church (or the individual Christian) to talk about displaying the character of Christ and to make grandiose claims about doing so. However, the image Christians project is not always the true, biblical image of Jesus Christ. Humility, patience, love, unity, and peace — these are the true marks of Jesus. Christians are to witness, but not arrogantly or rudely, not with an attitude of holier-than-thou smugness, not in sanctimonious presumption, and certainly not against a background of ugly church fights, Christian against Christian. The church is not to talk about itself. It is to be lowly in mind, not boasting of its power or seeking to advance its prestige. The church cannot save the world — but the Lord of the church can. It is not the church for which Christians are to labor and spend their lives, but for the Lord of the church. The church cannot exalt its Lord while it seeks to exalt itself. The true church does not seek to gain power in the eyes of the world. It already has all the power it needs from the Lord who indwells it.
Further, the church is to be patient and forbearing, knowing that the seeds of truth take time to sprout, time to grow, and time to come to full harvest. The church is not to demand that society make sudden changes in long established social patterns. Rather, the church is to exemplify positive social change by shunning evil and practicing righteousness, thus planting seeds of truth which will take root in society and ultimately produce the fruit of change.
Lord, keep me practicing the true purpose of the church, which is to exalt you in everything.
Life Application
Where do I need to shun evil and practice righteousness?