10:6-12 Here are precious promises to the people of God, which look to the state of the Jews, and even to the latter days of the church. Preaching the gospel is God's call for souls to come to Jesus Christ. Those whom Christ redeemed by his blood, God will gather by his grace. Difficulties shall be got over easily, and effectually, as those in the way of the deliverance out of Egypt. God himself will be their strength, and their song. When we resist, and so overcome our spiritual enemies, then our hearts shall rejoice. If God strengthen us, we must bestir ourselves in all the duties of the Christian life, must be active in the work of God; and we must do all in the name of the Lord Jesus.
8. hiss for them—Keepers of bees by a whistle call them together. So Jehovah by the mere word of His call shall gather back to Palestine His scattered people (Zec 10:10; Isa 5:26; Eze 36:11). The multitudes mentioned by Josephus [Wars of the Jews, 3:2], as peopling Galilee two hundred years after this time, were a pledge of the future more perfect fulfilment of the prophecy.
for I have redeemed them—namely, in My covenant purpose "redeemed" both temporally and spiritually.
as they have increased—in former times.