Acts 21:24-28

Apollos at Ephesus.
24. Apollos] The name is a contraction of Apollonius. He is mentioned again Acts 19:1; 1 Corinthians 1:12; 1 Corinthians 3:4.; 1 Corinthians 4:6; 1 Corinthians 16:12; Titus 3:13. He had been instructed and baptised by the disciples of the Baptist, and therefore regarded Jesus as the Messiah (Mark 1:7, etc.), perhaps even as 'the Son of God,' and 'the Lamb of God that taketh away the sin of the world '(John 1:29; John 1:34). His knowledge was accurate as far as it went, and his faith was sincere. That he received Christian baptism (probably from Aquila) is a certain inference from Acts 18:25 compared with Acts 19:1.

Eloquent] RV 'learned.' Both meanings may be included. Probably Apollos was acquainted with the philosophy of the Alexandrian Jew Philo, and his speculations about the Divine Logos ('Reason' or 'Word').