Better than sons and daughters
Isaiah 56 should be interpreted as the opening panel of a chiastic structure that starts with 56:1 and ends with chapter 66.
A. Righteous foreigners (56:1-8)
B. God's people unable to do right (56:9-59:15a)
C. The Divine Warrior (59:15b-21)
D. God's righteousness dawns in his people (60:1-22)
E. Anointed to preach the Good News (61:1-3)
D. God's righteousness dawns in his people (61:4-62:12)
C. The Divine Warrior (63:1-6)
B. God's people unable to do right (63:7-66:17)
A. Righteous foreigners (66:18-24)