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Greg L. Bahnsen, in his Presuppositional Apologetics: Stated and Defended, offers insight on the properly pious Christian approach to apologetics.
In Scripture, God requires Christian believers to subject every thought captive to the obedience of Christ. This is not done if the apologist attempts to use unbiased premises and non-committed logic to persuade his opponent….If every thought is to be subjected to Christ’s authority, then we must not attempt to set forth thoughts that are free from that authority or not committed to the truth of Scripture. Neutrality and dedication to Christ are incompatible, even in the field of apologetical argument.
—Greg L. Bahnsen, in Presuppositional Apologetics: Stated and Defended, 125 (emphasis original).