“Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God” (I Cor. 10:31).
This is the great guiding principle of the Christian life.
The Apostle Paul points out in the preceding context that what may be perfectly right for one person to do may trouble another’s conscience. The sincere and gracious believer, therefore, will not carelessly violate his brother’s conscientious scruples, offending him by indulging in that which he considers wrong. In Paul’s day, this particularly involved the foods of which men partook, but from both Romans 14 and I Corinthians 10 it is evident that Christian conduct in general is involved.
If, in my daily conduct, I consider not only my own, but also my brother’s conscience, it does not follow from this that I am disobeying Gal. 5:1, failing to “stand fast… in the liberty wherewith Christ hath made us free.” True, I have no right to give up my blood-bought liberty, but I do have liberty to give up my rights. This the world about us is slow to do, but it is one of the signs of true regeneration.
My aim in life should not be to gratify my own desires, much less to show up my brother’s weaknesses by vaunting my liberty in Christ. My one aim should rather be to glorify God in all I say and do.
All this, of course, has to do only with the conduct of believers in Christ. The unbeliever can do nothing to the glory of God. His very rejection of Christ is a continual offense to God who, in love, gave His Son to die in our place. The only way in which the unbeliever can honor God is to turn from his unbelief and trust Christ as their Savior (1 Cor. 15:1-4). source