。
The law ought to be obeyed.
Literal
Law [topic-は] obey-[passive-られる]-[should-べきである]
The passive of 守る ('to protect/obey') stacked with the moral-obligation ~べき + である. Literally: 'the law is something that ought to be protected'. This is a more detached, impersonal framing than '(you) must obey the law' — common in didactic writing.