Romans 13:8-10

Love is the essence of the spirit of God's law. The commandments are prescribed as rules of life. When we love, we have found the true principle of obedience, the true spirit of the holy law. Paul sums it all up in love. And we, having received the love of Christ, living in His love, see the law not as a stern, condemning taskmaster but as an appealing, bright vision of understanding and blessing.

We see the law embodied in Christ, and our imitation of Christ involves obedience to the law, but we fulfill the law, not simply as a standard outside, but as a living principle within. Acting according to the dictates of the way of love, our lives conform to the image of Christ, as we conform to the law. Love, therefore, is the fulfillment of the law.

Martin G. Collins
The Law's Purpose and Intent

Romans 13:10

Paul, apostle to the Gentiles, mentions the commandments frequently in his writings (Romans 1:18-25; 13:9; I Corinthians 10:7; Ephesians 6:1-2; Colossians 3:8; Hebrews 4:9). He summarizes the keeping of the last six as how to love our neighbor (Romans 13:10). If it is sin to break any of the last six that show love toward fellow man, most certainly it is sin to violate any of the first four that show love toward God.

Martin G. Collins
The Ten Commandments

Galatians 5:13-15

If we are self-serving and destructive, we will end up tearing each other apart, but if we serve one another in love, we will build the church. After He redeemed us, God gave us great freedom of mind, action, and choice. He has freed us from the curse of the law—the death penalty. He has freed us from the fear of death, from enslavement to sin, and so on.

Then He says, once we are freed, we need to use this freedom to serve. This is where the idea of being a slave of righteousness enters the picture. He severed our relationship from our former master (sin, Satan, the world), freed us, and then took us into slavery to Himself and to serving our brethren in righteousness.

Of course, as Paul said here, this fulfills the intent of God's law: love, outgoing concern, the way of give.

Richard T. Ritenbaugh
It Takes a Church