What Does “Lawful” Mean in the Bible?
Allowed by the law. “Is it lawful?” means “is it allowed?”
Where it appears in the Bible
Matthew 22:17; Mark 6:18
What the Bible says
Matthew 22:17
Tell us therefore what dost thou think, is it lawful to give tribute to Caesar, or not?
Mark 6:18
For John said to Herod: It is not lawful for thee to have thy brother’s wife.
Douay-Rheims Bible (Challoner revision), public domain.
Source: Dictionary.com, “lawful”