Acts 8:11

And they were paying attention to him because for a long time he had astonished them with [his] magic.

Acts 8:9

Now a certain man {named} Simon had been in the city practicing magic and astonishing the people of Samaria, saying he was someone great.

Galatians 3:1

O foolish Galatians, who has bewitched you, before whose eyes Jesus Christ was publicly portrayed [as] having been crucified?

Isaiah 8:19

Now if they tell you, "Consult the ghosts and the spirits, those who chirp and those who mutter. Should not a people consult its gods, the dead on behalf of the living,

Isaiah 44:25

who frustrates [the] signs of oracle priests and makes a fool of diviners, who drives [the] wise men back and makes their knowledge foolish,

Isaiah 47:9-13

And these two shall come to you [in] a moment, in one day: [the] loss of children and widowhood shall come on you {completely}, in spite of your many sorceries, in spite of the power of your great enchantments.

Treasury of Scripture Knowledge

Summary

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

Bible References

He had

Isaiah 8:19
Now if they tell you, "Consult the ghosts and the spirits, those who chirp and those who mutter. Should not a people consult its gods, the dead on behalf of the living,
Isaiah 44:25
who frustrates [the] signs of oracle priests and makes a fool of diviners, who drives [the] wise men back and makes their knowledge foolish,
Isaiah 47:9
And these two shall come to you [in] a moment, in one day: [the] loss of children and widowhood shall come on you {completely}, in spite of your many sorceries, in spite of the power of your great enchantments.
Galatians 3:1
O foolish Galatians, who has bewitched you, before whose eyes Jesus Christ was publicly portrayed [as] having been crucified?

General references

Exodus 22:18
" 'You will not let a witch live.
Leviticus 19:31
" 'You shall not turn to the mediums and to the soothsayers; you shall not seek [them] to become unclean with them; I [am] Yahweh your God.
Acts 8:19
saying, "Give to me also this power, so that whomever I place [my] hands on may receive the Holy Spirit!"