Revelation 21:4

And he shall away wipe every tear from their eyes; and death shall be no more, nor grief, nor crying; nor shall there be any more pain: for the former things are passed away.

Revelation 7:15-17

therefore, they are before the throne of God, and serve him, day and night, in his temple; and he who sits upon the throne, pitches his tabernacle over them.

Treasury of Scripture Knowledge

Summary

Thy sun shall no more go down; neither shall thy moon withdraw itself: for the LORD shall be thine everlasting light, and the days of thy mourning shall be ended.

Bible References

The days

Revelation 7:15
therefore, they are before the throne of God, and serve him, day and night, in his temple; and he who sits upon the throne, pitches his tabernacle over them.
Revelation 21:4
And he shall away wipe every tear from their eyes; and death shall be no more, nor grief, nor crying; nor shall there be any more pain: for the former things are passed away.