This final chapter of the prophecies of comfort (chs 40–55) summarizes the section’s prominent themes: blessing, covenant, witness, word, nations, glory, forgiveness, and joy.
The prophet calls for a response while the time is right.
My thoughts are nothing like your thoughts: God’s plans are marvelous (Ps 92:5; cp. Ps 94:11). God’s creatures, including humans, can never fully understand the Creator’s thoughts, but his revelation through his messengers gives great insight and knowledge of some of the things he will do.
The Creator not only sends rain and snow but also his word (Hebrew dabar). In this context, dabar means his will or plan (see 14:24; 40:8). God’s written word, as an expression of God’s plan, accomplishes his purposes. God is effective in whatever he does (see 14:26–27; 46:10).
The prophet encourages his people to forget the past, to leave Babylon, and to accept the perspective of the coming age.