Ezra's assertions

I was reading more today from the Frymer-Kensky book. Today's chapter centered around the book of Ezra, and the prophet's assertion that the men returning to Jerusalem from exile who had married "foreign" women should leave their wives and children to maintain the holiness of the nation.

She discussed the idea that Ezra used a scriptural support for his prophecy that might not apply to his current situation. In addition, Ezra's urging to abandon wives and children was not at all scriptural. The author wondered if he had indeed been concerned about purity or if his claims were more political in nature.

Do we do that today? Do we use the Bible to support our own purposes? Do we mold God's image and word into what we want instead of the opposite?