For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life.

John 3:16 ESV

"An infidel once met a Christian, and said, “I know you do not believe your religion.” “Why?” asked the Christian. “Because,” said the other “for years you have passed me on my way to my house of business. You believe do you not, there is a hell, into which men’s spirits are cast?” “Yes, I do,” said the Christian. “And you believe that unless I believe in Christ I must be sent there?” “Yes.” “You do not, I am sure, because if you did you must be a most inhuman wretch to pass me, day by day, and never tell me about it or warn me of it.” I do hold that there are some Christians who are verily guilty in this matter, God will forgive them, the blood of Christ can even wash that out, but they are guilty. Did you ever think of the tremendous value of a single soul...Ah! ye have not heard the howls and yells of hell; ye have not heard the mighty songs and hosannas of the glorified, ye have no notion of what eternity is, or else ye would know the value of a soul." CH Spurgeon

“I've always said that I don't respect people who don't proselytize [share the Gospel]. I don't respect that at all. If you [Christian] believe that there's a heaven and a hell, and people could be going to hell or not getting eternal life, and you think that it's not really worth telling them this because it would make it socially awkward--and atheists who think people shouldn't proselytize and who say just leave me along and keep your religion to yourself--how much do you have to hate somebody to not proselytize? How much do you have to hate somebody to believe everlasting life is possible and not tell them that? I mean, if I believed, beyond the shadow of a doubt, that a truck was coming at you, and you didn't believe that truck was bearing down on you, there is a certain point where I tackle you. And this is more important than that.” Penn Jillette

In many American churches, evangelism is reduced to little more than “invite a friend to church.” Biblical evangelism, sharing the articulated Gospel, is the responsibility of every believer. With this responsibility comes the inherent expectation that the believer will actually be able to convey what they supposedly believed themselves in order to be saved. Consider what the Bible has to say:

How then will they call on Him in whom they have not believed? How will they believe in Him whom they have not heard? And how will they hear without a preacher? How will they preach unless they are sent? Just as it is written, “How beautiful are the feet of those who bring good news of good things!”

Romans 10:13-14 NASB 95

Now I make known to you, brethren, the gospel which I preached to you, which also you received, in which also you stand, by which also you are saved, if you hold fast the word which I preached to you, unless you believed in vain.

For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures,…

1 Corinthians 15:1-4 NASB 95