For our transgressions are multiplied before thee, and our sins testify against us: for our transgressions are with us; and as for our iniquities, we know them;
For our transgressions are multiplied before thee, and our sins testify against us - (Daniel 9:5, etc.)
Thee ... us - antithesis.
For our transgressions (are) with us - i:e., we are conscious of them (margin, Job 12:3; Job 15:9).
And (as for) our iniquities, we know them - acknowledge they are our iniquities.