This teaching startles most people because many have wrongly assumed that believers will spend their lives in the sky. However, the Bible teaches that man’s ultimate destiny is an earthly one. Yes, we will one day return to God’s original plan as revealed in the garden of Eden.
Please also note that God creates the new Heavens and a new Earth. Just as we do not save ourselves, we do not create a heaven on earth by our own actions. God created us, God saved us, and God will provide a new home for us. This revelation should encourage us to glorify God and humble ourselves. Anything we make ourselves will have flaws and be incomplete. What God will fashion is complete and without blemish.
The Father, Son, and Spirit save us in the past, the present, and the future. Before all time; prior to all worlds; when there was nothing “outside of” God himself; when the Father, Son and Spirit found eternal, absolute, and unimaginable blessing, pleasure and joy in their holy trinity — it was their agreed purpose to create a world which would fall, and in unison — but at infinitely great cost — to bring you (if you are a believer) grace and salvation. This deeper grace from before the dawn of time — pictured in the rituals, the leaders and the experiences of the Old Testament saints (cf. Heb. 11:39–12:3) — is now ours. These are the dimensions of what the author of Hebrews calls “such a great salvation” (Heb. 2:3). Our salvation depends on God’s covenant, rooted in eternity in the plan of the Trinity, foreshadowed in the Mosaic covenant, fulfilled in Christ, enduring forever. No wonder Hebrews calls it “great.”