Isa 66:11

“This struggle is the correction of noble good deeds in them. For their sweat is profitable, and they have youth-like endurance in order to gain not an earthly possession but rather so that they become filled with graces from God and are satisfied in every desire. To these he makes this promise, "Like infants at the breast you will be filled by the breasts of consolation." Since Isaiah has previously compared the figure of a woman with the new Zion, he remains in this way of speaking and compares this comfort with that of the breasts and milk of the Holy Spirit. For in the Song of Songs it says, "Your breasts are better than wine."”

“With the breast of her consolations. Comp. Thou shalt suck the breast of kings (60:16). A fulness of joy is meant by this expression; for consolations are here the opposite of mournings. תמצו That you may milk out. Comp. מיץ the churning (Prov. 30:33), though of a different root. מזיז R. Jonathan b. Uziel translates it מחמד from the best; R. Moses Hakkohen compares it with וזיז שדי the wild beasts of the field (Ps. 1. 11); but this explanation is forced. I explain the word to be hap. leg.”