How do we know the second coming is true?

The second coming of Christ is a fundamental doctrine supported by numerous scriptural prophecies and teachings throughout the New Testament. Christ Himself made explicit statements regarding His return in passages such as Mark 13, where He warns His disciples about events leading to the culmination of history, including His return. The assurance of His coming is further reinforced in letters from the apostles, emphasizing the hope and expectation of the church. The perspective of historic Reformed theology affirms this doctrine as an essential aspect of God's redemptive plan, providing believers with a focus on the ultimate fulfillment of God's promises.