1 Corinthians 16:22.
If anyone does not love the Lord, let him be accursed. Maranatha.
The Greek word here transliterated as “Maranatha,” means “O Lord, come!” This expression of eagerness for the Lord to come is much like the expression in Revelation 22:20, “come, Lord Jesus.” I think this verse probably refers to the rapture, as we the church are eager for Him to come and take us away from this earth to our heavenly home. But I also think it could refer to the second phase of His coming, as the verse appeals to the Lord to come and bring judgment on those who do not love Him.
Hence, this reference could very well apply to both phases of His coming, or to the entire period from the rapture to His second coming in judgment.