so help me (God)
US /soʊ hɛlp mi (ɡɑd)/
UK /soʊ hɛlp mi (ɡɑd)/

1.
神に誓って, 本当に
used to emphasize that one is telling the truth or making a very serious promise or threat
:
•
I swear I didn't do it, so help me God!
私はやっていません、神に誓って!
•
I'll get to the bottom of this, so help me.
この件の真相を突き止める、神に誓って。