Read Isaiah 47:10 Using Other Translations
For thou hast trusted in thy wickedness: thou hast said, None seeth me. Thy wisdom and thy knowledge, it hath perverted thee; and thou hast said in thine heart, I am, and none else beside me.
You felt secure in your wickedness, you said, "No one sees me"; your wisdom and your knowledge led you astray, and you said in your heart, "I am, and there is no one besides me."
“You felt secure in your wickedness. ‘No one sees me,’ you said. But your ‘wisdom’ and ‘knowledge’ have led you astray, and you said, ‘I am the only one, and there is no other.’