Both Apollos and Timothy figured prominently in the ministry of the Apostle Paul. When the Apostle Paul arrived in Ephesus (Acts 19:2-3), he found that Apollos had established the church on the wrong foundation. Although well-intentioned, it is an example of an uncalled man undermining the genuine work of God. Unfortunately, it happened in the 1st Century and continues unabated today. So, Paul rebaptized the believers in Ephesus, and they received the gift of the Holy Ghost. (Acts 19:4-6).