In Second Peter 3:10, Peter inspired by the Holy Spirit, called our present hour The Day Of The Lord. In his book The Day of the Lord, Brian K. MaCallum draws from this scripture and many others to shed light on end-time events. He also clarifies the role of the Church and the believer as the return of Jesus quickly approaches. For believers to understand future events as they will actually happen, Rev. McCallum encourages them to diligently study the entire body of prophetic scriptures and learn heavily on the guidance of the Holy Spirit.