Matthew Poole and continuators on Exodus 28:38

38 And it shall be upon Aarons forehead, that Aaron may bear the iniquity of the holy things , which the children of Israel shall hallow in all their holy gifts : and it shall be alwayes upon his forehead, that they may be accepted before the LORD.

Either, 1. that he, being consecrated to God for this end, that he should take care as far as he could that both persons and things presented to God should be holy or agreeable to the mind of God, might bear the punishment for any miscarriage committed therein, which he could have prevented. Or rather, 2. that he being an holy person and appointed by God to make a typical reconciliation for the [illegible: 1 word] of the people, and to intercede for them might take away, or obtain from God the pardon of their iniquity wherewith even their holy things are defiled, if God should severely mark what is amiss in them. Which sence the last words of the verse favour. And the High-Priest was herein eminently a Type of Christ, who properly and truly bare and took away the iniquity of his peoples holy things, by his sacrifice and intercession.

(i. e.) Shall separate or consecrate unto God in all their offerings or gifts. If there be any thing amiss either in the thing offered or in the manner of offering, God upon the Priests intercession will pardon it.

(i. e.) At all times of his solemn appearance before God.