God shall wipe away all tears from their eyes - Matthew Henry

This new and blessed state will be free from all trouble and sorrow; for, 1. All the effects of former trouble shall be done away. They have been often before in tears, by reason of sin, of affliction, of the calamities of the church; but now all tears shall be wiped away; no signs, no remembrance of former sorrows shall remain, any further than to make their present felicity the greater. God himself, as their tender Father, with his own kind hand, shall wipe away the tears of his children; and they would not have been without those tears when God shall come and wipe them away. 2. All the causes of future sorrow shall be for ever removed: There shall be neither death nor pain; and therefore no sorrow nor crying; these are things incident to that state in which they were before, but now all former things have passed away. - Revelation 21:1-4

 Matthew Henry