User blog comment:B214/Volume 21 info & spoilers/@comment-83.7.233.159-20160420144354/@comment-24.113.129.70-20160423215200

I have my doubts about the Biblical God being as powerful as Shiva. I think that the Biblical God is more similar to Vritra, Cao Cao, Yuuto Kiba, and Azazel in how he fights. All the guys I listed here are master technique users. While they are not as powerful as most other beings, they use superior tactics and abilities to fight.

We know that the Biblical God created the Sacred Gear and Heaven Systems, that show how masterful at magic he is. Not only that, he can even seal extremely powerful beings into Sacred Gears. The seals he uses are so strong that the creatures can't break out (though I'm not sure they even tried too).

As for Trihexa, the Biblical God had to use several thousand seals, each one being on a "forbidden" level for him to use (forbidden basically means that using it will cause bad effects to the user, for example: like shortening their lifespan). So what I believe is that the Biblical God isn't a "powerful" god, but a "strong" tactition and magic user.