This sermon examines the biblical teaching that the specific day and hour of Christ's return are known only to the Father, explicitly rejecting any attempt to calculate or predict the timing of the Second Coming. By analyzing Matthew 24 and supporting passages in Mark, Acts, and 1 Thessalonians, the message emphasizes that believers are called to a state of constant vigilance and spiritual readiness rather than date-setting speculation. The preacher contrasts the error of naming a specific date with the error of assuming the Lord is delayed, urging the church to live as sober witnesses in the present age. The discussion further distinguishes the church's role from Israel's prophetic timeline, noting that the tribulation is a period of judgment for the nation of Israel, while the church is appointed to obtain salvation and avoid wrath. Ultimately, the sermon calls for a life of active faith and evangelism, trusting in God's patience and the certainty of Christ's imminent return.