When God's people failed to care for his vineyard (Isa 5:1-7), God cared for it himself. The vineyard earlier represented the nation of Israel (Isa 5:7) but here more broadly refers to God's people and kingdom. The LORD watches over it, waters it, and guards it. No harm comes to those under God's watchful protection. He is not angry. God even invites the enemies of God's people to make peace with him. God's people will take root, bud, blossom, and eventually fill the world with fruit. Fruit does not come from our effort but by remaining in Jesus Christ (Jn 15:5).
Verses 7-11 refer to the LORD disciplining his own people for their unfaithfulness. God strikes them but less severely than when he strikes their enemies. God uses warfare and exile to purify his people from their idolatry. The enemies of God will be killed. Their cities will be desolate. God has no compassion on unrepentant people.
A day is coming when God will thresh the nations to gather up his people. A great trumpet will sound. Though his people may feel like they are perishing or even exiles in the world, Christ will return to gather his people who will worship the LORD forever (1 Th 4:16-17). Praise God!
Application: Father, thank you for protecting your people and making them fruitful. Purify my heart and help me to be faithful to you as I wait for Jesus to return.
One Word: God makes us fruitful