How do we know Jesus's return is true?

The certainty of Christ's return is deeply rooted in biblical prophecy, as seen in passages like Acts 1:11 where angels assure the disciples that Jesus will return in the same way He ascended. Additionally, the New Testament emphasizes this promise through teachings from Paul and the apostles, reinforcing that this event will happen as a fulfillment of God's plan. The long-suffering of God, mentioned in 2 Peter 3:9, maintains that His delay is to allow for the repentance of the elect, not an indication of falsehood in His promise to return.