This infographic by CreditScore.net describes the history of microlending and its outcome. Christian relief organizations have been some of the pioneers in microlending. Opportunity International describes its mission:

Christian microfinance for the world’s poorest is our calling. Our clients’ lives can be financially, socially and spiritually transformed and that is loving proof that God works side by side with those who labor among the poor.

Providing microfinance to God’s beloved poor in Jesus' name is a worthy and complete calling.