We know Christ's second coming is true because it is affirmed in Scripture by prophets and apostles alike, from Job to the New Testament.
The certainty of Christ's second coming is reinforced by the continuity of revelation in Scripture. Even in the Old Testament, Job spoke of the latter day when his Redeemer would stand on the earth (Job 19:25). The Gospels recount Jesus' own promises of His return, and the epistles remind believers repeatedly of its truth. Furthermore, historical events serve as shadows of this ultimate hope. The assurance of Christ's words, 'He is coming again', provides comfort and motivates us to live in light of this reality.
Scripture References:
Job 19:25, Mark 13, 1 Thessalonians 4:16, John 14:3, Acts 1:11, 1 Thessalonians 1:10, 1 Thessalonians 4:16-17, Matthew 24:36
Commentary