Matthew Henry, in his commentary on 1 Peter 3:15 (known as the locus classicus to which we go about Christian apologetics), states that:
“The hope and faith of a Christian are defensible against all the world. There may be a good reason given for religion; it is not a fancy but a rational scheme revealed from heaven, suited to all the necessities of miserable sinners, and centering entirely in the glory of God through Jesus Christ. “
Religion is not a fantastical solution to this world’s problems. It is the only possible, plausible and perfect resolution to the irreconcilable rift between God and man that was brought about by sin. Understanding this Truth, the Christian should be ready at all times to elaborate upon it in order to eliminate any questions as to the reality of and dire need for his or her faith in the saving work of Jesus Christ. Ultimately, through all things, the necessary, unavoidable and ideal end is the glory of God.