There have been periods of my Christian life where I have, by God's grace, enjoyed fervent zeal towards evangelism. However, there are other spells of indifference and flat out negligence. To be honest, I really hate the way this fluxes.
I have tried different things to rev myself up and stimulate faithfulness, but at the end of the day it comes down to two things:
1) my view of God, and 2) my view of others
My View of God
When I think about evangelism as proclaiming "the excellencies of Him who has called you out of darkness into His marvelous light" (1 Peter 2.9) I begin calibrating my heart with the reality of the message proclaimed. For in the gospel, we speak of the most God-exalting truth available, and the most effective truth available; for it (the gospel) is the power of God for salvation (Rom. 1.16).
I need to spend more time at my Master's feet, learning to pray like a Christian, for it is indeed the instruction of Jesus that his disciples pray with a God-centered zeal, "Hallowed by your name". Yes, I must truly want this. I must truly desire to see the name of my God exalted. Lord, make your name hallowed, make it holy, for it is being disregarded, vindicate yourself through the proclamation of the gospel.
This is good for me spiritually. It is good to find myself seeing the disparity between my will and my Father's. And it is good to run back to him for a healthy calibration! In evangelism we are proclaiming the glory of God by declaring his excellencies, knowing that this brings God pleasure, honor and glory, regardless of whether or not the individual is converted.
My View of Others
On the other hand I am convicted by my own lack of love for others. This is really an outflow of the first, for if I do not love God rightly how can I love my neighbor?!
So here I am walking the planet with a pharisaical mindset, ignoring the greatest need of people. What is wrong with me? I can talk to them about the weather, sports, politics, food or whatever, but Jesus? This is not on my tongue.
Why? Why can I walk by the man or woman who has been beaten by the affects of sin and not open my mouth? There they sit, ever afflicted by the beatings, like the young man voyaging from Jerusalem to Jericho who fell upon robbers (Luke 10.30-34) and I am like the Levite or the preist who just walked on by. I have a medicine cabinet strapped to my back and I ignore them like they are not even there? Why? I do not love them. Perhaps you can relate?
In this vein I was struck by Alex Montoya's words in his helpful book, Preaching with Passion, Montoya is a professor at The Master's Seminary in Sun Valley, CA. ">One thing that has been particularly helpful relative to loving others with the gospel is to look into people's eyes. No I did not just go off the deep end. We live in a society where we fly by one another without even noticing each other, and when we look for more than the accepted 2.8 seconds, suddenly we are psychotic. What I am advocating is to look at people. Watch them, pray for them, look into their eyes as they speak to you. Hear their heart cry for relief. When you are filled with divine love for the glory of God and fueled for a love for your neighbor, a good healthy look into a person's eyes will convict you to the quick to evangelize and cease from meaningless dialogue about such futile things as the weather, the news or other distractions.