Do not be slothful in zeal, be fervent in spirit, serve the Lord. —Romans 12:11
When Jonathan Edwards was still a young man he wrote seventy resolutions. I think the sixth resolution captures the meaning of Paul’s words, “Do not be slothful in zeal, be fervent in spirit.” Edwards wrote: “Resolved: To live with all my might while I live.”
Jesus speaks terrible words of warning to those who settle in with lukewarm affections for him. Revelation 3:15-16, “I know your works: you are neither cold nor hot. Would that you were either cold or hot! So, because you are lukewarm, and neither hot nor cold, I will spit you out of my mouth.”
The great commandment is “You shall love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind” (Luke 10:27). And God promises to be found by us when we see him with earnestness rather than half-heartedness.Jeremiah 29:13-14, “You will seek me and find me. When you seek me with all your heart, I will be found by you declares the Lord” (Jeremiah 29:13-14).
Over and over the Bible says: intensity matters. Zeal matters. Wholeheartedness matters. Don’t settle for anything less. We exist to spread a passion for the supremacy of God. You can’t spread what you don’t have. Ask God for it in constant prayer and ransack the Word of God for wonders that make you boil for Christ. That’s the intensity part of verse 11.