'Legal' in the Bible

"It was said, 'Whoever divorces his wife must give her a legal document.'

But if you want anything in addition, it will have to be settled in a legal assembly.

When they had stretched him out for the lash, Paul said to the centurion standing nearby, "Is it legal for you to lash a man who is a Roman citizen without a proper trial?"

When any of you has a legal dispute with another, does he dare go to court before the unrighteous rather than before the saints?

who has become a priest not by a legal regulation about physical descent but by the power of an indestructible life.