God will ultimately banish all grief forever

Revelation 7:17; Revelation 21:4

For the Lamb who is in the middle of the throne shepherds them and leads them to springs of life-giving waters. And God will wipe away every tear from their eyes. He will wipe away every tear from their eyes. Death will be no more; neither will there be mourning, nor crying, nor pain, any more. The first things have passed away.