New Defender's Study Bible Notes
80:2 come and save us. As in Psalm 79, the psalmist is foreseeing difficult times for his people in the post-Davidic future, and praying for God’s deliverance in that day.
80:8 vine out of Egypt. The symbolic representation of Israel as a great vine planted by God is found in both Old and New Testaments. Note, for example, Isaiah 5:1-7; Jeremiah 2:21; Luke 20:9-18.
Psalm 81 (title) Gittith. See also the titles to Psalms 8 and 84. The name “Gittith” refers to the Philistine city of Gath. Its usage here could refer to some kind of musical instrument from that city.