Successful evangelism involves not only harvesting, but sowing and watering, too. We must never think that because a nonbeliever remained unconvinced by our case that our apologetic has failed. For one encounter is not the end of the story.
William Lane CraigThe point is this: If God does not exist, then life is objectively meaningless; but man cannot live consistently and happily knowing that life is meaningless; so in order to be happy he pretends life has meaning. But this is, of course, entirely inconsistentโfor without God, man and the universe are without any real significance.
William Lane CraigFor the assertion that "There is no God" is just as much a claim to knowledge as is the assertion that "There is a God." Therefore, the former assertion requires justification just as the latter does.
William Lane CraigTherefore, when a person refuses to come to Christ it is never just because of lack of evidence or because of intellectual difficulties: at root, he refuses to come because he willingly ignores and rejects the drawing of God's Spirit on his heart. No one in the final analysis really fails to become a Christian because of lack of arguments; he fails to become a Christian because he loves darkness rather than light and wants nothing to do with God.
William Lane Craig