But the LORD your God will give them over to you and throw them into great confusion, until they are destroyed.
Deuteronomy 7:23 ESV

Satan may be the author of confusion, but God will freely use it as an effective tool in His arsenal.

Confusion is a natural outcome of hating God. His commandments are guidelines for healthy, ordered life. If you reject him, you will also reject his commandments and thereby sow confusion and sickness into your own life.