Principi Apostolorum Petro §7

⁷ The house on a suburban hill where he lived soon resembled an illustrious academy with a great concourse of men eager to study the divine books. To it came learned interpreters and students of Scripture, including Zenobius, Maraba, and St. Isaac of Amidea, who acquired the title Great because of the profusion and importance of his writings. Because of his learning and holiness, Ephrem's fame spread from that retreat. Thus when he traveled to Caesarea to see Basil the Great, Basil, learning of his approach by divine revelation, received him reverently and spoke with him about divine concerns. According to report, it was at this time that Basil consecrated Ephrem deacon.