Deuteronomy 31:6 Be strong and of a good courage, fear not, nor be afraid of them: For the Lord thy God, He it is that doth go with thee: He will not fail thee, nor forsake thee. When Moses the man of God said these words he knew it would be this way, for he had interceded before God on Mt. Sinai for God's presence, and God promised His presence would go with them. It cost Moses his own opportunity, at that time to go into the promised land. When Moses walked up Mt Sinai he was probably trembling with concern. God had accepted his intercession for the people's sins but he had told Moses that His presence was no longer to go with them. Instead He would send an angel. This of course was not acceptable to Moses. Now Moses is going to try and secure that most valuable of all possessions for his people, the living presence of the eternal God of the ages walking in their midst. The intercession was more than just securing the remission of their sins, but also a restoration of the walk they previously had had with God. Moses pleaded, God accepted, and God told Moses: "MY PRESENCE SHALL GO WITH THEE, AND I WILL GIVE YOU REST"
When Jesus crawled up that lonely hill called Golgotha, He was doing more than securing the remission of my sins. That was wonderful, but now, that Prophet, Jesus Christ, the Son of God, raised up from the midst of the brethern like unto Moses, was crawling up that hill with the cross on His back to secure, for me, "the forever presence" of the living God that loves His people. That intercession was heard and accepted that day, for Isaiah says: Isaiah 53:11 "HE SAW THE TRAVAIL OF HIS SOUL AND WAS SATISFIED"
The walk that Adam had with God has been restored and now God has personally given me the promise of His eternal presence. I consider that to be the greatest promise in the Bible, for every other promise in the scripture is nothing without that promise. If we have His presence we have everything, if we don't have His presence, no matter what we may seem to have, all is dust and ashes and we truly have nothing.