C.H. Spurgeon emphasizes the importance of giving in secret, as highlighted in Matthew 6:3-4, where true charity is done without seeking recognition or reward from others. He encourages believers to give so naturally that it becomes a part of their daily lives, akin to eating meals, and to avoid self-congratulation for their generosity. Spurgeon assures that God sees and rewards those who give quietly, promising that the joy found in secret acts of kindness surpasses any earthly reward. He reminds us that the true value of our giving will be revealed in eternity, as God will reward in His perfect timing and manner.