Psalm 80
First, a few clarifications. We should have no problem following the vine metaphor that the psalmist uses in verses 8 to 16 – Israel being transplanted from Egypt to the Promised Land and taking control of that entire area during David’s and Solomon’s reigns. So within that metaphor, the sea refers to the Mediterranean and the River, most likely to the Euphrates (v. 11).
Second, the three tribes mentioned – Ephraim, Benjamin, and Manasseh (v. 2) – are all Northern Kingdom tribes. In fact, they are the Northern Kingdom tribes that are most near to Jerusalem. Where the psalmist is praying for deliverance for them (stir up Your might and come to save us…, v. 2a), it may be that they are under attack by the Assyrians, who later would defeat them and carry them away into exile.
Verse 18a stuck out for me: Then we shall not turn back from You… I noticed this verse because the RSV translates it, …we will never turn back… “Never”, like “always” is seldom a good term for us to use in our conversations with the Lord. Unfortunately, we know that both the Northern Kingdom and the Southern Kingdom tribes regularly turned their backs on the Lord. And we are no different. We may strive for “never” or “always”, but chances are, we will never get there. Only God is “never” and “always”; He is eternally so! GLORY!