If charity were based on our neighbor’s qualities, on his merits or his worth, if it were based on the consolation and benefits we receive from him, it would be impossible to extend it to all men. But since it is founded on the neighbor’s relation to God, no one can be legitimately excluded from it, because we all belong to God – we are, in fact, His creatures, and, at least by vocation, His children, redeemed by the Blood of Christ and called to live in “fellowship” with God (cf. 1 Jn 1,3) by grace here on earth and by the beatific vision in heaven. Even if some, by their sins, have become unworthy of God’s grace, as long as they live they are capable of being converted and of being re-admitted to loving intimacy with their heavenly Father.
From Divine Intimacy #260, p. 757