New Living Translation
They listened closely to him because for a long time he had astounded them with his magic.

American Standard Version
And they gave heed to him, because that of long time he had amazed them with his sorceries.

Berean Study Bible
They paid close attention to him because he had astounded them for a long time with his sorcery.

Douay-Rheims Bible
And they were attentive to him, because, for a long time, he had bewitched them with his magical practices.

English Revised Version
And they gave heed to him, because that of long time he had amazed them with his sorceries.

King James Bible
And to him they had regard, because that of long time he had bewitched them with sorceries.

World English Bible
They listened to him, because for a long time he had amazed them with his sorceries.

Young's Literal Translation
and they were giving heed to him, because of his having for a long time amazed them with deeds of magic.

Acts 8:11 Additional Translations ...