When the ten lepers were healed, it was only one leper a Samaritan who came back to thank Jesus. Jesus asked him, were not all ten healed, where was the other nine? (Luke 17:11-19). Jesus wants us to thank him at all times irrespective of our circumstances. Most times we think that God is supposed to do things for us, so he does not need any appreciation from us. It is in the will of God to thank Him in all circumstances (1 Thessalonians 5:18). When we thank him, he is pleased with us and we are in His will. When we do things according to His will, He always comes through for us.