Solomon was a king of Israel to whom God granted immense wisdom. And he literally had it all: huge piles of gold, a giant palace, and hundreds of wives and concubines. You'd think Solomon would have been the most content man on earth! But he wrote a book about how pointless life is: "Yet when I surveyed all that my hands had done and what I had toiled to achieve, everything was meaningless, a chasing after the wind; nothing was gained under the sun." (Ecclesiastes 2:11) You can hear his loneliness and desperation in that statement!
In comparison, one day when Jesus was walking through a town, he was met by a man with leprosy. Lepers were ten times more scary then than now; people were terrified of catching it. Lepers were outcasts and rejects, often abandoned by friends and family to beg on street corners just to have something to eat. Picture this particular leper sitting in the dust and dirt, ignored by everyone who passed by. He had no one to turn to and not a penny to his name. He got up, walked up to Jesus, fell on his knees in the street, and asked to be made clean. Jesus
touched the leper - a person who had likely not been touched by another human being in years - and healed him. The now socially-acceptable man was ecstatic and went around telling everyone about it, although Jesus had instructed him otherwise. His life suddenly had joy and meaning, despite the fact that he still had nothing and no one. What changed this former outcast's world so entirely? Just one brief interaction with Jesus.
We weren't made to be lonely
We were made to have a relationship with God.
It's the one thing that can bring us out of our loneliness, because it's the connection we were made to have. That one interaction with Jesus, who is God, brought meaning, comfort and joy to the life of that leper, while all the jewels, gold, and women in the world didn't bring meaning to Solomon's life. Having a personal relationship with God changes everything; it is the answer to our loneliness problem.
That said, does having a relationship with God protect us from feelings of loneliness for the rest of our lives? No. Simply put, the system is broken. It's a complicated story you can learn more about
here, but our world is a damaged place. We are separated from God by our sin, our desire to live apart from God. In this world, we cannot experience life the way it was meant to be, without loneliness or evil or sorrow or fear.
So now what? Despite the fact loneliness is a reality of being human with no immediate cure, there are two things that can help in the here and now:
Community: how to deal with loneliness
Because we were created for connection, a big part of dealing with loneliness is to be in community. No friend will save you from being lonely ever again, but when you have people around you who care about you for who you are (not for your body, skills, money, or ability to hold alcohol) it can help you see you are not really alone.