Albert Barnes Commentary Psalms 80:11

"It sent out its branches unto the sea, And its shoots unto the River." — Psalms 80:11 (ASV)

She sent out her boughs to the sea - To the Mediterranean Sea on the one side.

And her branches - Her sucklings. The word is usually applied to little children, and means here the little branches that are nourished by the parent vine.

To the river - The Euphrates, as "the river" usually means in the Scriptures. The Euphrates on the one side, and the Mediterranean Sea on the other, were the natural and proper boundaries of the country as promised to Abraham. See (Psalms 72:8; 1 Kings 4:21). Compare the notes at Psalms 60:1-12.