Here is the full list of all 13 Brutal Bible Bloodbaths achievements.
Worship foreign goddess
Be cleansed by soldiers
Chop fruit tree
Eat a lot of fermented fruit
Get help with cleansing
Brag about solo cleansing
Withdraw sword early
Mostly obey chop quest
Flawlessly obey chop quest
End chop quest early
Tidy up all of the flesh
Cleanse hiding people quickly
Cleanse all hiding people