When Jesus sent out the disciples to preach the gospel, He told them if any city recieve not the gospel, shake off the dust of your feet. It was a testimony against that city. Jesus said in Matthew 11:20-29, just such rebukes. He said woe unto Chorazin, Bethsaida and Capernaum. Jesus said it would have been better for Tyre and Sidon and Sodom. He said they would have received the gospel and repented. Then Jesus began to pray and thank God for revealing Himself. Then He began to call people to Himself. Jesus said I will give rest for your souls. Because My yoke is easy and My burden light. You never know who is going to accept the gospel. This is why we preach the gospel to everyone. As Paul said, that some may be saved. God is the only one who gives the increase or the willingness to accept the gospel. It is the grace of God.