'Undefiled' in the Bible

How blessed and favored by God are those whose way is blameless [those with personal integrity, the upright, the guileless],Who walk in the law [and who are guided by the precepts and revealed will] of the Lord.

But my dove, my perfect one, stands alone [above them all];She is her mother’s only daughter;She is the pure child of the one who bore her.The maidens saw her and called her blessed and happy,The queens and the concubines also, and they praised her, saying,