'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.

In Christ Jesus, then, I have found [legitimate] reason for boasting in things related [to my service] to God.

All things are lawful [that is, morally legitimate, permissible], but not all things are beneficial or advantageous. All things are lawful, but not all things are constructive [to character] and edifying [to spiritual life].

We, on the other hand, will not boast beyond our proper limit, but [will keep] within the limits of our commission (territory, authority) which God has granted to us as a measure, which reaches and includes even you.

We are not overstepping the limits of our province, as if we did not [legitimately] reach to you, for we were the [very] first to come even as far as you with the good news of Christ.

But if you are without discipline, in which all [legitimate sons] have become participants, then you are illegitimate and not sons.