'Is It Lawful' in the Bible

Then He said to them, “Is it lawful on the Sabbath to do what is good or to do what is evil, to save life or to kill?” But they were silent.

Some Pharisees approached Him to test Him. They asked, “Is it lawful for a man to divorce his wife?”

When they came, they said to Him, “Teacher, we know You are truthful and defer to no one, for You don’t show partiality but teach truthfully the way of God. Is it lawful to pay taxes to Caesar or not?