Read Isaiah 59:2 Using Other Translations
But your iniquities have separated between you and your God, and your sins have hid his face from you, that he will not hear.
but your iniquities have made a separation between you and your God, and your sins have hidden his face from you so that he does not hear.
It’s your sins that have cut you off from God. Because of your sins, he has turned away and will not listen anymore.