The Outward Dimension.
“First, worship can be reflected in how we behave toward others. Romans 14:18 says, ” For he who in this way serves [latreuo] Christ is acceptable to God.” What is this acceptable offering given to God? The context reveals that it is being sensitive to a weaker brother. Verse 13 says, “Therefore do not let us judge one another anymore, but rather determine this—not to put an obstacle or stumbling block in a brother’s way.” In other words, when we treat fellow Christians with the proper kind of sensitivity, that is an acceptable act of worship. It honors God, who created and loves that person, and it reflects God’s compassion and care.
Romans 15:16 furthermore implies that evangelism is a form of acceptable worship. Paul writes that special grace was given to him “to be a minister of Christ Jesus to the Gentiles, ministering as a priest the gospel of God, so that my offering of the Gentiles might become acceptable.” The Gentiles who were won to Jesus Christ by his ministry became an offering of worship to God. In addition, they who were won became worshippers themselves.
In Philippians 4:18, Paul thanks the Philippians for a gift of money to help him in his ministry: “I have received everything in full and have an abundance; I am amply supplied, having received from Epaphroditus what you have sent, a fragrant aroma, an acceptable sacrifice, well-pleasing to God.” Here, acceptable worship is described as giving to those in need. That glorifies God by demonstrating His love.
So worship can be expressed by sharing love with fellow believers, sharing the gospel with unbelievers, and meeting the needs of people on a very physical level. We can sum it up in a single word: acceptable worship is giving. It is a love that shares.”
-John MacArthur, Worship: The Ultimate Priority, 45.