In transgressing - That is, we have been guilty of this as a continuous act.
And lying against the Lord - We have proved false to Yahweh. Though we have been professedly his people, yet we have been secretly attached to idols, and have in our hearts been devoted to the service of false gods.
And departing away from our God - By the worship of idols, and by the violation of his law.
Speaking oppression and revolt - Forming plans to see how we might best take advantage of the poor and the defenseless, and to mature our plans of revolt against God.
Conceiving and uttering from the heart - (See the notes at Isaiah 59:4). The idea is, that they had formed in their hearts schemes of deception, and that in their conversation and their lives they had given utterance to them. All this is the language of genuine contrition, where there is a consciousness of deep guilt in the sight of God. There is an overpowering sense of the evil of sin. and a willingness to make the most full and ample acknowledgment, however mortifying it may be, of the errors and follies of the life.