We know we’re saved by grace through faith, and one of the most common questions I’ve received since teaching the Bible is, “How were people in the OT saved, since they lived before Christ’s First Coming?” The answer is people were saved in the OT just like they’re saved in the NT: by grace through faith. God made numerous prophecies that a Messiah would come into the world. If they believed those prophecies, or had faith those prophecies would come true, or had faith that Messiah would come, they were saved as they looked forward in faith to the Messiah coming.
Last Sunday we looked at the prophecy in Genesis 3:15 that the Seed of the Woman would come and crush the head of the Serpent. As soon as sin came into the world, that prophecy was introduced allowing people to look forward to, or put their faith in the Seed of the Woman. In other words, as soon as sin came into the world, so too did the opportunity for people to be saved by grace through faith. Just like we pass along to our children what we know about Christ, that prophecy would’ve been passed along to Adam and Eve’s descendants, allowing them to be saved by grace through faith.
What was their faith IN since they didn’t know Jesus like we do? Their faith was in all the prophecies about His coming. If they believed Jesus would come, they were saved, similarly to how we’re saved if we believe Jesus has come. OT and NT believers are both saved by looking to Christ in faith, but from opposite sides of the cross. People in the OT were saved by grace through faith in Jesus coming like we’re saved by grace through faith in Jesus having come. That’s why Gen 15:6 can say Abraham was saved (accounted righteous) by his faith or belief in what God had said to Him in Gen 12 when He established the Abrahamic Covenant with him. But didn’t Abraham live before the Gospel? Genesis 3:8 says God “preached the gospel to Abraham.” Consider that!!! Abraham heard the Gospel! Here’s a quote I really like: “The basis for salvation in every age is the death of Christ; the requirement for salvation in every age is faith; the object of faith in every age is God; the content of faith changes in the various ages.”