We look back on Christ and His sacrifice for salvation. People who were alive before then looked forward to the coming Messiah. Either way, salvation is/was/always will be by Grace alone by faith alone.
Interesting, instead of corrected it, they deleted their tweet
https://twitter.com/MelissaTweets/status/1542642726696796160?s=20&t=haKbOCElZQtvMChtoFTewg