Is it harder to rejoice with those who rejoice or weep with those who weep? In this sermon on Romans 12:15–16 titled “Practical Christianity (2),” Dr. Martyn Lloyd-Jones looks at how Christians are called to respond to one another. The problem of every human being, without exception, is the problem of pride and self. All struggle with envy and jealousy. The Christian is called to not settle for being able to hide this sin but learn to replace it by rejoicing with another over their success. No one can do this for themselves. The gospel of salvation in Christ is the only thing that can deliver one from the self and unify them with the body of believers. Christians cannot divide doctrine and practice and should look at the story of the Christian church, being called to have a common mind and think like one another. Christians are encouraged to know what it means to be knit together in love. They are to look at the example of Christ washing the feet of men and preach the gospel to the poorest. Nothing is more incongruent to the Christian faith as social disjunctions. Christians should associate with the humble, forsaking pride and ambition, and come humbly before the Lord.

http://www.mljtrust.org/sermons/practical-christianity-2/