How do we know that Jesus will come again?

The return of Jesus Christ is confirmed through Scripture, which presents His coming as a vital truth of the Christian faith. In John 21:22-23, Jesus assures His disciples of His plan and purpose without divulging all details about His timing. Additionally, Paul, in 1 Corinthians 11:26, states that the Lord's Supper is a proclamation of the Lord's death 'till He comes', reinforcing the certainty of His return. The testimony of the angels in Acts 1:11 further assures us of His second coming. Thus, believers are encouraged to remain steadfast in faith and watchfulness, confident in the truth of His promises.