The argument used by non-Reformed people is that this text teaches that everybody in the world has it in their power to accept or reject Christ. A careful look at the text reveals, however, that it teaches nothing of the kind.
It is ironic that in the same chapter, indeed in the same context, in which our Lord teaches the utter necessity of rebirth to even see the kingdom, let alone choose it, non-Reformed views find one of their main proof texts to argue that fallen man retains a small island of ability to choose Christ. It is John 3:16: “For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life.”
What does this famous verse teach about fallen man’s ability to choose Christ? The answer, simply, is nothing. The argument used by non-Reformed people is that the text teaches that everybody in the world has it in their power to accept or reject Christ. A careful look at the text reveals, however, that it teaches nothing of the kind. What the text teaches is that everyone who believes in Christ will be saved. Whoever does A (believes) will receive B (everlasting life). The text says nothing, absolutely nothing, about who will ever believe. It says nothing about fallen man’s natural moral ability. Reformed people and non-Reformed people both heartily agree that all who believe will be saved. They heartily disagree about who has the ability to believe.
Some may reply, “All right. The text does not explicitly teach that fallen men have the ability to choose Christ without being reborn first, but it certainly implies that.” I am not willing to grant that the text even implies such a thing. However, even if it did it would make no difference in the debate. Why not? Our rule of interpreting Scripture is that implications drawn from the Scripture must always be subordinate to the explicit teaching of Scripture. We must never, never, never reverse this to subordinate the explicit teaching of Scripture to possible implications drawn from Scripture. This rule is shared by both Reformed and non-Reformed thinkers.