That was a one and done. The gate is closed, angels stand guard.
It is the results of the disobedience that are being dealt with. It is still a covenant of works. Jesus is the life, the only way to eternal life and
He kept the covenant of works for us because we cannot do it.
That assumes
Ge 2:17 was a covenant of works, whereas the NT presents it simply as law/command (
Ro 4:15, 5:12-14).
All righteousness is a gift of God (
Ge 15:6, Ro 1:17, 3:21, 4:1-11, Php 3:9), either
imputed by faith (justification) or
imparted through obedience (sanctification), it is never generated by man.
Adam was created with it, Jesus was born with it.
The man Jesus, like the man Adam, did not have to
earn his righteousness. Both had only to
preserve the gift they were given.
It is the righteousness of Jesus with which he was
born, and which he
did not lose by disobedience, that is credited/imputed to those in Christ.
He came, not to
earn righteousness, but to
remain righteous in obedience in order to meet the requirement of perfection for an acceptable sacrifice.
The NT does not present a works righteousness,
ever. . .even for the OT (
Ro 3:20), for righteousness has
always been by faith,
never by law-keeping:
Gal 3:10-12 -
"Clearly no one is justified before God by the law because 'The righteous will live by faith' (
Hab 2:4)
, and the law is not of faith, it is of works ('the man who
does these things will live by them,'
Lev 18:5)"
Note that
the reason no one will be justified by the law is
not because no one can keep it perfectly, but
is because righteousness is not by, and has never been, by law keeping,
And that includes the man Christ's righteousness.
Believers now eat of the tree of life. John 6:54 Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day.
John 6:32-32 Jesus then said to them, "Truly, truly. I say to you, it was not MOses who gave you the bread from heaven, but my Father gives you the true bread from heaven." 35. Jesus said to them, "I am the bread of life; whoever comes to me shall not hunger, and whoever believes in me shall never thirst. 48-51.
It was a tree in Eden in the covenant of works, bread in the expanded covenant of works in the Exodus, a tree again in Rev 22:1-5 at the fullness of days. Creation began with a covenant of works with man, remained a covenant of works with man, the works fulfilled by a Man. All to bring in the covenant grace and carry it to it's fullness, that covenant of grace that also began in the Garden in Gen 3.