Answer
The Bible does not specifically tell us whether Adam and Eve were saved. However, there are several biblical clues we can consider, and those clues suggest that they were.
First, we need to define what we mean by “saved.” In the New Testament, the apostle Paul uses the notion of “salvation” (cf. Romans 5:9; 10:9–10; 13:1, etc.) to imply things like deliverance from sin, rescue from the wrath of God, and the guarantee of future blessing in heaven. The conditions for salvation are, according to Romans 10:9–10, faith in the basic truths of the gospel (I am a sinner, Jesus died for my sins, Jesus rose again bodily on the third day, etc.) and a verbal confession of Jesus as Lord.
Did Adam and Eve know the basic truths of the gospel? While they would not have known Jesus’ name or the details of the gospel message, Adam and Eve certainly had access to the central message of the gospel, in the sense that they recognized their need for a Savior and understood that a Savior would be provided to destroy the effects of the Fall and the devil’s work. God promised that the “seed of the woman” would save them (Genesis 3:15). Moreover, they were clearly aware of their sinfulness and their need to be redeemed, as they experienced the shame of their own nakedness (Genesis 3:7–11). So Adam and Eve had access to sufficient information to accept the main message of the gospel.
Did Adam and Eve genuinely believe the gospel information they had? Again, we cannot answer this question with total certainty, but it seems reasonable to conclude that they did believe. After they had sinned, God made garments of skin for Adam and Eve to cover their nakedness (Genesis 3:21). Many scholars understand this as the first animal sacrifice, foreshadowing the eventual death of Christ on the cross for the sins of the world. So Adam and Eve apparently recognized and accepted God’s act on their behalf to provide a Substitute who could bear the penalty of their sin.
Genesis 4:25 further supports the idea that Adam and Eve believed God’s promise: “And Adam knew his wife again, and she bore a son and named him Seth, ‘For God has appointed another seed for me instead of Abel, whom Cain killed’” (NKJV). Eve’s use of the word seed (Hebrew zera‘) echoes the same word God uses in Genesis 3:15 to promise the Savior. It seems likely that Eve considered Seth to be the one to crush the serpent’s head, and she may have looked at Abel the same way before he died.
Did Adam and Eve trust in Jesus Christ as Savior? As noted above, since they did not have access to particular historical details like the specific name of Jesus, they could not have confessed with their mouths that Jesus is Lord the way Christians do today (Romans 10:9-10). However, by verbally passing the story of their fall into sin and God’s promise of a coming Savior, Adam and Eve did verbally confess the gospel implicitly. Thus, even if Adam and Eve did not literally trust in Jesus, they still trusted in what God had revealed to them about the future provision of salvation.
To summarize, there is no unambiguous biblical evidence that Adam and Eve were truly saved. However, on the basis of the evidence we do have, it seems that Adam and Eve likely affirmed the basic truths of the gospel and in some sense by faith confessed their need for the Savior who was promised to them. It therefore seems reasonable to conclude that Adam and Eve were indeed saved. We will see them in heaven someday.