How do we know that God rewards secret giving?

In Matthew 6:4, Jesus states that when we give in secret, our Father who sees in secret will reward us openly. This promise highlights the belief that God values the intentions behind our giving more than the act itself. The emphasis is on the heart and motive; those who give for God's glory rather than for earthly recognition will receive rewards from God. This encourages believers to engage in acts of generosity without concern for public acknowledgment, trusting in God’s faithfulness to reward their quiet service.