Sins of Ignorance from Owen...

This if from Owen's commentary on Hebrews and he explains more on this subject...

"That which he offered for. It was their “errors,” or their sins. The Socinians, some of them, —not for want of under standing, but out of hatred unto the true sacrifice of Christ, —contend from hence that the anniversary sacrifice on the great day of expiation, the principal representation of it, was only for sins of ignorance, of imbecility and weakness. But it is a fond imagination; at least the argument from these words for it is so. For besides that the Scripture calls all sins by the name of “errors,” Psalm 19:12, 25:7; and the worst, the most provoking of all sins, is expressed by “erring in heart,” Psalm 95:10; and the LXX. frequently render “to sin” by ajgnoei~n, 2 Chronicles 16:9; 1 Samuel 26:21; Hosea 4:16, etc; —besides, I say, this application of the word elsewhere unto all sorts of sins, in the enumeration of those errors of the people which the high priest offered for they are said to be “all their iniquities,” and “all their transgressions in all their sins,” Leviticus 16:21. Wherefore to offer for the “errors” of the people, is to offer for “all their sins,” of what nature soever they were. And they are thus called, because indeed there is no such predomi-nancy of malice in any sin in this world as wherein there is not a mixture of error, either notional or practical, of the mind or of the heart, which is the cause or a great occasion of it."