Those who won’t bend their knee to God typically won’t nod their head to truth either. By this, I mean that someone who is unwilling to acknowledge God’s authority over their life is not likely to acknowledge God’s truth either when that truth conflicts with their desire for self-autonomy.

So when we offer reasons and evidence for the truth of Christianity (an apologetic), and those reasons and that evidence are rejected by the unbeliever, it’s not necessarily because our reasons are bad or the evidence isn’t good (although, that’s not to say I haven’t heard bad arguments offered by Christians). It is simply the fact that the same will that is bent against God’s authority is also bent against God’s truth. If the unbeliever acknowledged God’s truth, they would also have to acknowledge that their continued rejection of God is based purely on their obstinate will. So instead, they reject that truth and continue to pretend that their rejection of God is based on intellectual merits. This is not a failure of apologetics, but a failure of the human will.