Use "day of doom" in a sentence

1. That Boghte us with the precious blood of his herte, so that I may been oon of hem at the day of doom that shulle be saved

2. Thurgh the benigne grace of hym that is kyng of kynges and preest over alle preestes, that Boghte us with the precious blood of his herte; so that is may been oon of hem at the day of doom that shulle be saved