“Fear not, for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand” (v10). Through Isaiah, God reminded Israel that they were His beloved people. God had gathered them from the ends of the earth and not cast them off (v9); no matter how weak they felt (“you worm Jacob” v14), God would defend them. He promised to make their dry lands into springs of water and to plant trees everywhere (v18-19).
“I am the one who helps you” (v14). By faith in Christ we are included in God’s beloved people, and the “Holy One of Israel” saves, protects, and defends us (v20).