In the beginning, the LORD walked with Adam in the cool of the evening in the Garden of Eden, where He spent a time of communion daily with His image creature. Adam was then sinless and there was therefore nothing to separate them.
After Adam sinned and was removed from the Garden, the LORD could no longer visit him as He had done before. God established times of dispensations to reestablish the sinless quality that He had originally given to mankind by the offering of sacrifices and the keeping of laws.
Now during this dispensation of Grace, God is reestablished man’s sinless position on the day of Pentecost. The Apostle Peter gave the instructions and keys to the Kingdom of heaven to all would listen in Jerusalem. All people were to be washed in the blood of Jesus Christ to remove their sins from them, and be filled with the Spirit of God to continually renew man’s nature toward sinlessness. Have you received your sinless nature? God wants to walk with you in your Garden of Eden.