I started a series on the book of Esther this past Sunday with my jr. high students. Karen Jobes, in her NIV Application Commentary on Esther, insightfully captures the Christian significance of the fact that God is never mentioned in the book:
“The great paradox of Esther is that God is omnipotently present even where God is most conspicuously absent. Jesus’ last words were, “Go and make disciples of all nations…And surely I am with you always, to the very end of the age” (Matt. 28:19-20). And then, ironically, he left! Nevertheless, our Lord is omnipotently present even where he is most conspicuously absent” (p. 49).