Romans 12:9-11
The Greek word underlying “fervent” is zeō, which at its root means “to boil; seethe.” The apostle Paul instructs us in this passage to “run hot” in using God's Spirit to serve God and others at all times—even when the spiritual climate around us has gone cold. Fervent application of God's way of life, lived through following the urgings of the Holy Spirit, will help us to prepare and endure.
Jesus tells the disciples in John 15:13, “Greater love [agapē] has no one than this, than to lay down one's life for his friends.” To God, that is how far our loving service should go for our brethren. It does not have to mean that we literally die for them, though it could. The idea here is similar to what Paul writes in Romans 12:1 about being “a living sacrifice.” That is, we lay aside what we may want to do at a given time to help a brother or sister in his or her time of need.
What if we lack that kind of selflessness? The apostle John writes in I John 4:8 that “God is love [agapē].” He is its Source, and we must study Him and go to Him for help in growing in it.
John Reiss
Waxing Cold

Prefer others over ourselves in humility, abasing ourselves to let him do his job and considering him as over us. Say he is the knee and we are the toe: each follows when the other must perform its function. We each have areas of responsibility; leave one another alone to do jobs and give precedence, so all work gets done without stepping on each other. Follow when cooperation requires it, lead when it requires that. No need to fight or worry about others' jobs. When each does his part well, the whole body moves forward.