What is a fervent person? Is a person who is very enthusiastic in what he does, not only showing interest but perseverance in the work he has decided to undertake. And it is clear that the Lord wants us to have fervor or persistence in everything we do. Imagine, if we need perseverance in secular things, how much more in heavenly things?
The apostle Paul said to the Romans:
11 Never be lacking in zeal, but keep your spiritual fervor, serving the Lord.
12 Be joyful in hope, patient in affliction, faithful in prayer.
13 Share with the Lord’s people who are in need. Practice hospitality.
When we speak of the work of the Lord everything requires diligence and we must be fervent in it, since we often put diligence into insignificant things, and this is something we must understand, serving God is the greatest privilege that any human being can have and this must be great joy for us.