Genesis 2:25

And they were both naked, the man and his wife, and were not ashamed. There was no necessity for clothes, either physically or morally, before the Fall. Nakedness is here the expression of perfect innocence, since the bodies of both Adam and his wife were sanctified by the Spirit that lived in them. Shame did not enter until sin came into their hearts and caused desires and lusts to corrupt the pure order of God. It should be noted here, as well as throughout these two Chapter s, that all theories and idle speculations concerning creation, Paradise, the state of man's integrity must be put aside for the simple truth of Scriptures. What God has not revealed no idle speculation will uncover.