Verse 2 Have Not as in A.V., "since ye believed," but as in R.V. and marg.: "Did ye receive the Holy Spirit when ye believed?" Paul was evidently impressed by the absence of spirituality and power in these so-called disciples. Their answer brought out the fact that they were Jewish proselytes, disciples of John the Baptist, looking backward to an accomplished redemption. Romans 8:9; 1 Corinthians 6:19; Ephesians 1:13. Verse 16 overcame The sons of Sceva sought to imitate a power to which they were strangers, only to their own confusion. This striking witness from another side caused fear to fall on all. prevailed Luke 11:21,22; 1 John 4:4. Verse 21 spirit i.e. in his own mind. Cf. (See Scofield "Acts 20:22") . Verse 23 about the way concerning the Way, i.e. Christ. John 14:6. Verse 27 world "oikoumene" = inhabited earth. (See Scofield "Luke 2:1") . Verse 28 Diana Gr. Artemis. Not anciently of the Greek pantheon, but an Eastern goddess. Cf. Judges 2:13. (See Scofield "Judges 2:13") . But "Diana of the Ephesians" was rather a particular image of Artemis, reputed to have fallen from heaven; Acts 19:35.