Isaiah 56

Isaiah delivers God's promises to those who choose to worship him over other things in life. He mentions the foreigner who leaves his native people to yoke himself under Israel. To them God promises a spot in his temple and acceptance of their offering. To the eunuch who commit themselves to serving God instead of mourning the children who will never be God made a promise as well. A monument and eternal life. Isaiah records these messages to reassure those outside of the main stream of covenant people that they will not be forgotten.
It took me about 3 minutes to read this chapter.
Stuart