Every Christian is either a missionary or an imposter. -Spurgeon
Because that for his name's sake they went forth, taking nothing of the Gentiles. 3 John 1:7
Drive is just another way of saying motivation. Our motivation should be the love of Jesus Christ. His compassion, His longsuffering, His mercy, and His grace should motivate us to tell others about Him. It should provoke us unto good works. It should spark a desire to stand up, speak up, and proclaim the Gospel to every person we come in contact with.
John told Gaius, “…for his name’s sake they went forth.” What’s your drive in Missions? Just look to Calvary and it tells the old, old story of Jesus and His love!