Though the Law frequently speaks of defilements, abominations, and prohibitions, it is not even a trustworthy statement about how God is eternally-minded about some of those issues. If it was the Gentile church of the NT would not even exist. There was a purpose to such transitory statements, but it wasn't an eternal one: can you really perceive of cattle chutes in heaven? The law schoolmastered the purposed of God until they could step into the purpose of God.
What, then, does Moses tells us about the purpose of God? Well, that God is motivated to rescue a people from bondage to be his people, to live with them in harmony, and to bless them and share his goodness with them. That purpose cannot be achieved with broken Adamic humanity, because righteousness is essential to the purpose but impossible with them. Despite that, God's purpose remains fixed. Adamic humanity cannot enter into it, but people raised in Christ can.