What does 1 Peter 3:15 mean?
In the previous verse, Peter instructs Christians not to fear those who cause them to suffer for the sake of Christ. In this verse, he reveals how believers should choose to respond, instead.First, we should set aside our hearts as the place where Christ is fully honored as the Lord. Peter is writing to people who are already believers. His audience already understands Jesus to be the Lord of all. Still, he instructs Christians to focus intently on Christ's role as our master, living as if that were absolutely true in all cases, even in suffering. Peter calls us to full submission to Christ.
When we set apart Christ as Lord, it will change us. Peter says those who observe us will notice the difference. That difference is hope. Even in the midst of our suffering, our hopefulness should be apparent. So, Peter instructs us to be ready to answer the question our life should inspire: "How can you be so hopeful in such difficult circumstances?"
Peter anticipates people will become curious. Hopefulness and joy are starkly different from the normal human response to suffering. So much so that people will be eager to understand it. What will we say when they ask? We must be prepared to give our defense, to make the case for faith in Christ. We need to reject the cultural pressure to keep our beliefs to ourselves. Instead, believers should openly share the good news of redemption through faith in Christ.
The Greek word translated as "make a defense," or "give an answer" is apologian, from the root word apologia. This is not related to the English word "apology," where one expresses regret or remorse. Rather, the term means a justification, or an "answer back," or a reason. This is the source of the terms "apologetics" and "apologist," which refer to a rational defense of the Christian faith.
Finally, it matters how we make that case for Christ. We must present it with gentleness and respect. Christians are not called on to condemn those who are curious about our hopefulness. Nor are we to be vindictive, vengeful, or insulting to those who disagree. Rather, we should explain our faith without harshness or dismissiveness.