About 25 years ago, I found myself at a church altar in Orlando, Florida. God had been dealing with me about leaving my comfort zone. I had a great job with nice benefits, yet I felt spiritually unfulfilled. I knew there was an amazing adventure in front of me, but I had placed serious limitations on my obedience.

As I buried my head in the carpet in that church, I realized God was requiring unconditional surrender. He wanted me to wave a white flag. I knew what I had to say, but it was difficult to form the words. Finally, I coughed them up. I said the same thing the prophet Isaiah prayed long ago: “Here I am, send me!” (Isa. 6:8b).

This is what I call a dangerous prayer. It should include a warning label!

I believe when you utter these simple words, heaven takes a picture of you with your hands up—and an amazing process begins. God closes in on us in order to crush our fears and demolish our selfishness. Then He gives us the holy boldness to obey.

When I prayed this prayer in 1998, I immediately had a vision while I was still on the floor. I saw a sea of African faces. I knew I’d be going to Africa, and I was scared to death. I had no idea how I would get there, what I would say or who would pay for the trip. So I swallowed hard and prayed again: Here I am, send me!

Less than two years later, I stood on a huge stage in a sports arena in Port Harcourt, Nigeria, speaking to 7,000 pastors. I did not enjoy the bumpy flight across the Sahara, and my knees were knocking when I preached. I felt as if I had been pushed way out on a limb.

But even though I was terrified, my fear was mixed with incredible joy. The Lord had overcome my resistance, and He was using me. Since that trip, I have ministered in 39 countries. This week, I will preach in Iceland—all because I prayed a dangerous prayer.

Grace is so amazing. God not only gives us the power to serve Him; He plants in us the desire to surrender to His will even if we are scared of the consequences. This is what the apostle Paul described when he said: “For God is the One working in you, both to will and to do His good pleasure” (Phil. 2:13).