Naw, you're the one being disingenuous...God did not write only the scriptures your religion likes to glom on to...He wrote 'em all...
When God tells his people they have to drink blood for salvation and at the same time tells the same people they can not drink blood under any circumstances, there's a problem...One statement can be a metaphor or they can both be a metaphor, but they both can not be literal...And if you don't accept that, you're being disingenuous...
Hint:
The OT and the covenant of the NT are NOT “at the same time.