The parable often called the Wheat and the Tares gives hope that one day all will be made right.
In some of his last words, in Matthew 28:16-20, Jesus gave a clear mission to his disciples: to make more disciples of all people...
Continuing the final conversation with his disciples in John 14:15-31, Jesus told them how to show their love for him and of the gifts...
Because humans were dead in our sins, the only possible solution was for God to make us alive because of his grace.