Isaiah 65:17-19 start out sounding like Revelation chapters 21 and 22, but Isaiah 65:20 sounds more like Revelation 20:

Isaiah 65:17 For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into mind.

  18 But be ye glad and rejoice for ever in that which I create: for, behold, I create Jerusalem a rejoicing, and her people a joy.

  19 And I will rejoice in Jerusalem, and joy in my people: and the voice of weeping shall be no more heard in her, nor the voice of crying.

  20 There shall be no more thence an infant of days, nor an old man that hath not filled his days: for the child shall die an hundred years old; but the sinner being an hundred years old shall be accursed.

Because, in the new Jerusalem, there shall be no more death:

Revelation 21:1 And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.

  2 And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband.

  3 And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God.

  4 And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.

So, is Isaiah 65:20 actually describing what it will be like in the thousand year kingdom, before the new Jerusalem?