Paul had tried to persuade Apollos to go back to Corinth, but it was not convenient for him to return until later. The account does not state what the hindrance was with Apollos. Earlier in this epistle, Paul wrote that he had planted and Apollos had watered (1 Cor. 3:6). Paul thought highly of Apollos, even though they differed doctrinally for a while. Apollos had brought many to Christ, he was zealous and courageous, and he was willing to be instructed. Even prior to his enlightenment on the subject of baptism, he was commended as being full of faith in the Spirit and mighty in the Scriptures (Acts 18:24,25). Paul properly weighed matters.