2 Corinthians 11:14

And no marvel; for even Satan fashioneth himself into an angel of light.

Genesis 3:1-5

Now the serpent was more subtle than any beast of the field which Jehovah God had made. And he said unto the woman, Yea, hath God said, Ye shall not eat of any tree of the garden?

2 Corinthians 2:11

that no advantage may be gained over us by Satan: for we are not ignorant of his devices.

2 Corinthians 11:3

But I fear, lest by any means, as the serpent beguiled Eve in his craftiness, your minds should be corrupted from the simplicity and the purity that is toward Christ.

Galatians 1:8

But though we, or an angel from heaven, should preach unto you any gospel other than that which we preached unto you, let him be anathema.

Matthew 4:1-10

Then was Jesus led up of the Spirit into the wilderness to be tempted of the devil.

Revelation 12:9

And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, the deceiver of the whole world; he was cast down to the earth, and his angels were cast down with him.

Treasury of Scripture Knowledge

Summary

And no marvel; for Satan himself is transformed into an angel of light.

Bible References

For

2 Corinthians 11:3
But I fear, lest by any means, as the serpent beguiled Eve in his craftiness, your minds should be corrupted from the simplicity and the purity that is toward Christ.
2 Corinthians 2:11
that no advantage may be gained over us by Satan: for we are not ignorant of his devices.
Genesis 3:1
Now the serpent was more subtle than any beast of the field which Jehovah God had made. And he said unto the woman, Yea, hath God said, Ye shall not eat of any tree of the garden?
Matthew 4:1
Then was Jesus led up of the Spirit into the wilderness to be tempted of the devil.
Galatians 1:8
But though we, or an angel from heaven, should preach unto you any gospel other than that which we preached unto you, let him be anathema.
Revelation 12:9
And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, the deceiver of the whole world; he was cast down to the earth, and his angels were cast down with him.

General references

Deuteronomy 13:2
and the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them;
Proverbs 19:27
Cease, my son, to hear instruction Only to err from the words of knowledge.
2 Corinthians 2:11
that no advantage may be gained over us by Satan: for we are not ignorant of his devices.