"So mote it be" is a ritual phrase used by the

Freemason Freemasonry or Masonry refers to fraternal organisations that trace their origins to the local guilds of stonemasons that, from the end of the 13th century, regulated the qualifications of stonemasons and their interaction with authorities ...

s, in Rosicrucianism, and more recently by

Neopagan Modern paganism, also known as contemporary paganism and neopaganism, is a term for a religion or family of religions influenced by the various historical pre-Christian beliefs of pre-modern peoples in Europe and adjacent areas of North Afric ...

s, meaning "so may it be", "so it is required", or "so must it be", and may be said after the person giving the prayer says '

Amen Amen ( he, אָמֵן, ; grc, ἀμήν, ; syc, ܐܡܝܢ, ; ar, آمين, ) is an Abrahamic declaration of affirmation which is first found in the Hebrew Bible, and subsequently found in the New Testament. It is used in Jews, Jewish, Christia ...

'. The phrase appears in the Halliwell or Regius Manuscript, the earliest known document relating to a society of Masons in England, dating from the first half of the 15th century. "Amen! amen! so mot hyt be! Say we so all per charyté". The phrase has been taken up by

neopagans Modern paganism, also known as contemporary paganism and neopaganism, is a term for a religion or family of religions influenced by the various historical pre-Christian beliefs of pre-modern peoples in Europe and adjacent areas of North Afric ...

and they use it in a similar way in their ceremonies and rituals.

References

Modern pagan beliefs and practices Phrases 15th-century neologisms {{vocab-stub