Arcana Coelestia #3274
3274. 'These are the years of Ishmael's life' means a state representative of the Lord's spiritual kingdom, portrayed by means of Ishmael. This is clear from the meaning of 'years' and 'life' at this point as representative states, dealt with above in 3251, and from the representation of 'Ishmael' as the Lord's spiritual kingdom, dealt with in 2699, 3263, 3268.
Isaiah 42:10-11
10
Sing to Yahweh a new song, and his praise from the end of the earth, you who go down to the sea, and all that is therein, the islands and their inhabitants.
11
Let the wilderness and its cities raise their voices, with the villages that Kedar inhabits. Let the inhabitants of Sela sing. Let them shout from the top of the mountains!