Isaiah 26:1

In that day. That is, the great day of the Lord pictured in chs. 24 and 25. This will be a day of distress and destruction for the wicked, but a day of salvation and rejoicing for the people of God. This chapter consists of a song of hope and trust that will be in the hearts of God’s people when troubles overwhelm the earth as Christ is about to return to reign. We have a strong city. In Isaiah’s day this was literal Jerusalem and Mt. Zion (ch. 24:23). Sennacherib brought the might of Assyria against Jerusalem but did not take it (see on chs. 36; 37). What the power of man could not do for the city, God’s power did for it. He made Jerusalem a city of salvation and strength, whose walls were impregnable.