'Undefiled' in the Bible

I was asleep, but my heart was awake. It is the voice of my beloved who knocks: "Open to me, my sister, my love, my dove, my undefiled; for my head is filled with dew, and my hair with the dampness of the night."

For such a high priest was fitting for us: holy, guiltless, undefiled, separated from sinners, and made higher than the heavens;

Let marriage be held in honor among all, and let the bed be undefiled: but God will judge the sexually immoral and adulterers.

Pure religion and undefiled before our God and Father is this: to visit the fatherless and widows in their affliction, and to keep oneself unstained by the world.

to an incorruptible and undefiled inheritance that doesn't fade away, reserved in Heaven for you,