Shared joy is a double joy; shared sorrow is half a sorrow. (Swedish proverb)
Experience has shown us that sharing is not a natural human trait. Children have to be taught to share—often with many struggles and much reluctance. On special occasions gift-giving can be a real joy, especially when gifts are shared. There is another side of sharing, too. Griefs and sorrows are endured so much more easily when they are shared with loving family and friends.
[Those who fear the Lord] share freely and give generously to those in need. Their good deeds will be remembered forever. They will have influence and honor. (Psalm 112:9)