How was Paul present when the Corinthian church gathered in 1 Corinthians 5:4?
Paul was present in spirit, not physically. Though he was across the Aegean Sea in Ephesus, he told the Corinthian church that when they gathered in the name of the Lord Jesus Christ, his spirit would be with them, along with the power of the Lord Jesus Christ.
Les explains that 1 Corinthians 5 deals with a terrible immoral situation in the Corinthian church, and Paul tells them they have to deal with it. In verse 4, when the local church comes together—what many today might call a business meeting—Paul says his spirit would be present even though he was across the Aegean Sea over in Ephesus at the time. The gathering was in the name of the Lord Jesus Christ and with His power, to deliver such a one unto Satan for the destruction of the flesh, not the soul and spirit.
In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of our Lord Jesus Christ,