'Legitimate' in the Bible

He went to his father's home in Ophrah and murdered his half-brothers, the seventy legitimate sons of Jerub-Baal, on one stone. Only Jotham, Jerub-Baal's youngest son, escaped, because he hid.

But you have attacked my father's family today. You murdered his seventy legitimate sons on one stone and made Abimelech, the son of his female slave, king over the leaders of Shechem, just because he is your close relative.

Absalom would then say to him, "Look, your claims are legitimate and appropriate. But there is no representative of the king who will listen to you."

And Cyrus, king of Persia, had Mithredath the treasurer bring them out, and he counted them out to Sheshbazzar, the governor (leader) of Judah.

Do not accuse anyone without legitimate cause, if he has not treated you wrongly.

Rejoice greatly, daughter of Zion! Shout, daughter of Jerusalem! Look! Your king is coming to you: he is legitimate and victorious, humble and riding on a donkey -- on a young donkey, the foal of a female donkey.