Is this spam email written in code?

Recently received an obvious spam email that containing gibberish that looks like code. It also contains an attachment ((sic)Get Free BTC AK543 .htm) that I will obviously not click on. Does anyone want a go at cracking the body of the email?

LIWRDJ CYLJFGJ YSTBDSA KTYVVEW XNZYY WKBFYV ALTFZF ESIAU
PWXEHK TXIEOBV AXOIYD SDLIA GFFGDNZ CECNJN GTVQYYX
VPCRG OXVZE QYLYQ WPEJUHV UZXLTX ROXBJL

It appears to be the first verse or two of the Book of Genesis in Klingon.

It’s just there in an attempt to confuse the Bayesian filters.