'Lawful' in the Bible

Also we inform you, that touching any of the priests and Levites, the singers, porters, Nethinim, or servants of this house of God, it shall not be lawful to impose tribute, custom, or toll, on them.

Shall the prey be taken from the mighty, or the lawful captives be delivered?

But if a man is just, and does that which is lawful and right,

Yet you say, Why doesn't the son bear the iniquity of the father? When the son has done that which is lawful and right, and has kept all my statutes, and has done them, he shall surely live.

But if the wicked turn from all his sins that he has committed, and keep all my statutes, and do that which is lawful and right, he shall surely live, he shall not die.

Again, when the wicked man turns away from his wickedness that he has committed, and does that which is lawful and right, he shall save his soul alive.

Again, when I say to the wicked, You shall surely die; if he turn from his sin, and do that which is lawful and right;

None of his sins that he has committed shall be remembered against him: he has done that which is lawful and right; he shall surely live.

When the wicked turns from his wickedness, and does that which is lawful and right, he shall live thereby.