They paid close attention to him because he had astounded them for a long time with his sorcery.
Berean Standard Bible (BSB)
They listened to him, because for a long time he had amazed them with his sorceries.
World English Bible (WEB)
And{G1161} to him{G846} they had regard{G4337}{(G5707)}, because{G1223} that of long{G2425} time{G5550} he had bewitched{G1839}{(G5760)} them{G846} with sorceries{G3095}.
Strong's King James
(11) And they paid him attention because he had amazed them with magic.
The F.O.G
The F.O.G Message
and they were giving heed to him, because of his having for a long time amazed them with deeds of magic.
Young's Literal Translation