Albert Barnes Commentary Isaiah 61:5

"And strangers shall stand and feed your flocks, and foreigners shall be your plowmen and your vine-dressers." — Isaiah 61:5 (ASV)

And strangers shall stand - (See the notes at Isaiah 14:1-2; Isaiah 60:10).

And feed your flocks - The keeping of flocks constituted a very considerable part of the husbandry of those who lived in Palestine. Of course, any considerable spiritual prosperity would be well represented by an influx of foreigners, who would come to relieve them in their toil. It is not necessary to suppose that this is to be taken literally, nor that it should be so spiritualized as to suppose that the prophet refers to churches and their pastors, and to the fact that those churches would be put under the care of pastors from among the pagan. The idea is that it would be a time of notable spiritual prosperity, and the influx would be as great and important as if foreigners were to come in among a people and take the whole labor of tending their flocks and cultivating their fields.

Your plowmen - Hebrew, אכר 'ikkâr — from which probably is derived the Greek ἀγρός agros; the Gothic akr; the German acker; and the English acre. It properly means a digger or cultivator of the soil, or farmer (Jeremiah 51:26; Amos 5:16).

And vine-dressers - The sense here agrees with what has been so repeatedly said before, that the pagan world would eventually become tributary to the church (see the notes at Isaiah 9:5-7, Isaiah 9:9–10).