Deuteronomy 17:15

Choose, as he did Saul, David, and Solomon, who succeeded to the throne of his father, though he was not the eldest son. (Menochius) --- Then the throne began to be hereditary, in virtue of God's promise to David. (Calmet) --- Brother. The Jews neglected this law, when they willingly recognized the authority of Herod, two years after the birth of Christ. See Genesis xlix. 10. (Haydock) --- A stranger might attempt to draw off the people from the service of the true God, and mutual love would not so easily subsist between them. (Menochius)