We are strongly commanded in the Bible to be witnesses of Jesus Christ. As Christians, we can’t ignore this call to evangelize the world. It’s not only our religious obligation; it’s also our moral duty. People are spiritually dying all around us, and it is criminal for us not to offer them the cure.
If you were caught up in a flash flood and saved by someone who pulled you to safety by a rope, it would be natural for you to act to save someone else if the circumstances were reversed.
“Be not thou therefore ashamed of the testimony of our Lord, nor of me his prisoner: but be thou partaker of the afflictions of the gospel, according to the power of God; Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began” (1 Tim. 1:8-9).
Several Church fathers have offered strong opinions of Christians who are not active in spreading the good news: “Have you no wish for others to be saved? Then you are not saved yourself. Be sure of that.” – Charles Spurgeon
“If you do not make it a matter of study, how you may successfully act in building up the kingdom of Christ, you are acting a very wicked and absurd part as a Christian.” – Charles Finney
“Let us not deceive Jesus Christ in the testimony we owe Him, by stopping our mouths, when it is needful to maintain His honor, and the authority of His gospel.” – John Calvin
“The harvest truly is plenteous, but the laborers are few; pray therefore the Lord of the harvest, that he will send forth laborers into his harvest” – Matthew 9:37,38