Romans 13:9-10, Love Is the Fulfilling of the Law
The love of God is shed abroad in our hearts by the Holy Ghost which is given unto us (Romans 5:5). God gives us the ability to love others by the empowering of the Holy Spirit indwelling the believer. It is a true test of conversion.
The believer has the indwelling Holy Spirit that enables to love:
(1) the being of God (2) the worship of God (3) the name of God (4) the day of God (5) the representative of God (6) the body of man (7) the morality of man (8) the property of man (9) the personality of man (10) the property of man.