But before faith came, we were kept in custody under the law, being shut up to the faith which was later to be revealed. Therefore the Law has become our tutor to lead us to Christ , so that we may be justified by faith. But now that faith has come, we are no longer under a tutor. Law has become our tutor to lead us to Christ . By showing us how much we need an attonement for our sins.
Law is a tutor.
Now, I realise that I haven't answered your question. I gotta say, I don t know. Nobody s getting into heaven without being redeemed by the blood of Jesus. I think we might be given a couple of hints though. For example, Abraham was a rightous man who followed God's Law, but the Ten Commandments weren't even written down on the tablets yet.