Acts 18:26

Luke named Priscilla here before her husband. He did not explain the reason for this unusual order in the text. [Note: See my comment on Acts 18:2 above.] This couple wisely took Apollos aside and privately instructed him in subsequent revelations about "the way of God" (i.e., the gospel) that he did not know.

"Before the encounter with Aquila and Priscilla, it is best to regard Apollos in the same class as OT saints. They too hoped for salvation in Messiah and had not rejected him. The entire Book of Acts depicts the transition from Judaism to Christianity. It is not surprising, therefore, to find imperfect forms of faith during those epochal days." [Note: Kent, p. 149.]

Another possibility is that Apollos was a New Testament Christian who had not yet learned as much as Priscilla and Aquila had about their faith.

Priscilla and Aquila were an outstanding couple who give evidence of having a strong marriage. They always appear together on the pages of Scripture. They were selfless and brave and even risked their own lives for Paul (Romans 16:4). They were hospitable and hosted a church in their home (1 Corinthians 16:19), and they were flexible, as seen in their moving twice (Acts 18:2; Acts 18:18). They worked together as leather-workers (Acts 18:3). They were committed to Christ and to teaching others about Him, which their instruction of Apollos illustrates.

"It is a needed and delicate task, this thing of teaching gifted young ministers. They do not learn it all in schools. More of it comes from contact with men and women rich in grace and in the knowledge of God’s ways." [Note: Robertson, 3:308.]