Augustine of Hippo

All this, from the beginning of the Psalm up to this verse, we have heard of the oil of the press. What remains is rather for grief and warning: for it belongs to the lees of the press, even to the end; perchance also not without a meaning in the interposition of the "Diapsalma." But even this too is profitable to hear, that he who sees himself already of the oil may rejoice; he that is in danger of running among the lees may beware. To both give heed, choose the one, fear the other.

"Hear, O My people, and I will speak, and will bear witness unto thee." For it is not to a strange people, not to a people that belongs not to the press: "Judge ye," He saith, "between Me and My vineyard."