Isaiah 25:6 (ESV) … “On this mountain the Lord of hosts will make for all peoples a feast of rich food, a feast of well-aged wine, of rich food full of marrow, of aged wine well refined.”
The following verses undoubtedly refer to the times of the Messiah. Several of the expressions used here are quoted in the New Testament, showing that the reference is to the Messiah, and to the fact that his kingdom would commence in Jerusalem, and then extend to all people.
Shall the Lord of hosts. (See Note on ch. 1:9.)
Make unto all people. Provide for all people. He shall adapt the provisions of salvation not only to the Jews, but to men everywhere. This is one of the truths on which Isaiah loved to dwell, and which in fact constitutes one of the peculiarities of his prophecy. It is one of the chief glories of the gospel, that it is unto all people. See Isa. 57:7; Dan. 5:19; 7:14; comp. Luke 2:10: ‘I bring you good tidings of great joy, which shall be unto all people.’
A feast. A feast, or entertainment, was usually observed, as it is now, on occasion of a great victory, or any other signal success. It is, therefore, emblematic of an occasion of joy. Here it is used in the twofold sense of an occasion of joy, and of an abundance of provisions for the necessities of those who should be entertained. This feast was to be prepared on mount Zion—in the provision which would be made in Jerusalem by the Messiah for the spiritual wants of the whole world. The arrangements for salvation are often represented under the image of an ample and rich entertainment [1]
[1] Barnes, A. (1851). Notes on the Old Testament: Isaiah (Vol. 1, p. 401). Blackie & Son.