3. Invitation to salvation chs. 54-55

This section of Isaiah's prophecy joyfully announces Yahweh's salvation and invites participation in it. Joy and invitation are the result of the announcement of salvation through the Servant (52:13-53:12).

"The first two Servant Songs are followed by tailpieces concerned with divine confirmation of the Servant's task and promises of its success (42:5-9; 49:7-13). The third and fourth Songs are followed by invitations to respond to the Servant and what he has done (50:10-11[; chs. 54-55]). Response is the keynote of chapters 54-55. . . . In his saving work, the Servant has done everything, removing sin, establishing in righteousness, creating a family. The way is therefore open for response, pure and simple: to sing over what someone else has accomplished (54:1), to enjoy a feast for which someone else had paid (55:1)."⁶⁰²

 Yahweh's everlasting love ch. 54

The theme of this segment is God's love for His people. He can dispose of His righteous anger quickly, and He delights to bless His people.

 Yahweh's gracious invitation ch. 55

This chapter is part two of Isaiah's celebration of the Servant's work of redemption. In view of what God would do for humankind (ch. 54), people would need to appropriate the salvation that he provided (ch. 55). As in the preceding sections (52:13-54:17), the people of God in view are primarily Israel but not exclusively Israel. As the Lord's salvation extends to all people, so do the benefits of that salvation for as many as take advantage of it. This chapter contains one of the warmest gospel invitations in the whole Bible. It forms a fitting climax to this section of Isaiah that deals with God's provision of salvation (chs. 49-55).

"Redemption has been accomplished. Both in the introduction and in the conclusion of the fourth servant passage it was predicted that the heathen would belong to the servant [52:15; 53:11-12]. The Blessings the servant has obtained for his people have been set forth abundantly (chap. 54), and now the invitation is extended to all that are in need to come and to partake of the salvation the Lord offers."⁶²¹