Jesus advised against inviting friends and family to meals solely for the purpose of being invited back and receiving repayment. Instead, he recommended inviting the poor, crippled, lame and blind, as this act of charity cannot be repaid but will be rewarded in heaven. Several analyses of Jesus' words noted that true charity is done without thought of earthly reward, but to help those in need and glorify God. Christians have a duty to care for the physical and spiritual needs of the poor.