What does it mean to sanctify the Lord in our hearts?

To sanctify the Lord in our hearts is to acknowledge His holiness and sovereignty in our lives, giving Him rightful place as our priority. This involves a deep reverence and a readiness to defend our hope in Him, as noted in 1 Peter 3:15. By recognizing Christ's authority, we cultivate a heart that is prepared to respond to others with meekness and fear, showcasing the light of the gospel through our actions and words. It is a reminder that our identity and guidance stem from our relationship with Christ, entrusting our lives to His wisdom and grace.