2 Corinthians 9:7

Each one must do just as he has purposed in his heart, not grudgingly or under compulsion, for God loves a cheerful giver. Apostle Paul sent Titus to the Church at Corinth to tell them about giving because they were lack in that area. He voasted about how they paid tithes and offering and worked in ministry and sharing the good news of Jesus. Yet, when it came to giving they were not such cheerful giviers. Tithus was also sent to receive the money or whatever they had to give.