What man lost in the fall?

God’s Glory.

Romans 3:23

For all have sinned, and come short of the glory of God;

Garden Home.

Genesis 2:15 

And the LORD God took the man, and put him into the Garden of Eden to dress it and to keep it.

Genesis 3:22 -24

22 And the LORD God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever:

23 Therefore the LORD God sent him forth from the Garden of Eden, to till the ground from whence he was taken.

24 So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life.

Righteousness and true Holiness.

Ephesians 4:22-24

22 That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts;

23 And be renewed in the spirit of your mind;

24 And that ye put on the new man, which after God is created in righteousness and true holiness