The truth is that the deceiver has been deceiving from the beginning until now.
How would we know who were the ones that were deceived?
We know that Eve was deceived when she believed the deceiver and disobeyed God's command.
Who are the deceivers and who were deceived?
...At that time many will turn away from the faith and will betray and hate each other, and many false prophets will appear and deceive many people. Because of the increase of wickedness, the love of most will grow cold, but the one who stands firm to the end will be saved. And this gospel of the kingdom will be preached in the whole world as a testimony to all nations, and then the end will come. For false messiahs and false prophets will appear and perform great signs and wonders to deceive, if possible, even the elect.
Matthew 24:10-14, 24
...For such people are false apostles, deceitful workers, masquerading as apostles of Christ. And no wonder, for Satan himself masquerades as an angel of light. It is not surprising, then, if his servants also masquerade as servants of righteousness. Their end will be what their actions deserve.
2 Corinthians 11:13-15
...And those that were deceived believed in the deceivers mentioned above and disobeyed God's commands because they were made to believe that they would not surely die, IOW, "always saved". But scriptures warn us not to be deceived;
Let no one deceive you with empty words, for because of such things God’s wrath comes on those who are disobedient. Therefore do not be partners with them.
Ephesians 5:6-7
...Now the serpent was more crafty than any of the wild animals the Lord God had made. He said to the woman, “Did God really say, ‘You must not eat from any tree in the garden’?” The woman said to the serpent, “We may eat fruit from the trees in the garden, but God did say, ‘You must not eat fruit from the tree that is in the middle of the garden, and you must not touch it, or you will die.’ ” “You will not certainly die,” the serpent said to the woman. “For God knows that when you eat of it your eyes will be opened, and you will be like God, knowing good and evil.”...
Genesis 3:1-19
Just think what could have happened if Eve did not believe the serpents deception but OBEYED God instead. ...NO NEED TO DISCUSS SALVATION FOR SURE because no one needs to be saved.
The truth is that Adam and Eve were created according to the image of God's righteousness and holiness and they BELIEVE and OBEY God until they got DECEIVED and disobeyed God.
Did God warn us about the deception? If He did, then why resist them?
Immorality is disobedience to God's moral laws. Do you change God's Grace into a license for immorality (Jude 1:4) thereby receiving God's Grace in vain (2 Corinthians 6:1) by nullifying God's Word, laws, commands, teachings and instructions.(Mark 7:6-13, Isaiah 5:20-24)
So who would say now that OBEDIENCE TO GOD HAS NO BEARING IN SALVATION?