Apollos, an Alexandrian Jew, who, after acquiring a thorough knowledge of the Old Testament (Acts xviii. 24), came under the influence of John the Baptist's teaching, and about the middle of the first century embraced Christianity at Ephesus. He then received fuller instruction from Aquila and Priscilla. At Corinth, where he watered the seed sown by Paul, his popularity was so great that his followers appear to have sought to establish a sect of their own (1 Cor. iii. 4-7). Apollos, disgusted, left Corinth, and probably gave full information to Paul, who generously wished him to return. He is thought by many to be the author of the Epistle to the Hebrews.