How do we know that caring for the poor is a Christian duty?

In Luke 14:12-14, Jesus instructs his followers to invite the poor, the crippled, the lame, and the blind to their feasts, emphasizing the importance of showing charity to those in need. This instruction aligns with the broader scriptural context, where God commands His people to open their hands to the needy (Deuteronomy 15:11). The expectation to care for the poor is rooted in the consistent teachings of Scripture that highlight God's concern for the marginalized. By promoting a spirit of generosity and compassion, believers reflect the character of Christ, who prioritized the needs of the least among us. Thus, caring for the poor not only fulfills a biblical mandate but also serves as a testament to our faith in action, reinforcing the idea that true religion is shown through mercy and charity.