NET

51 Solomon was told, “Look, Adonijah fears you; see, he has taken hold of the horns of the altar, saying, ‘May King Solomon solemnly promise me today that he will not kill his servant with the sword.’”

Darby

51 And it was told Solomon saying, Behold, Adonijah fears king Solomon; for behold, he has caught hold of the horns of the altar, saying, Let king Solomon swear to me this day that he will not put his servant to death with the sword.

KJV

51 And it was told Solomon, saying, Behold, Adonijah feareth king Solomon: for, lo, he hath caught hold on the horns of the altar, saying, Let king Solomon swear unto me to day that he will not slay his servant with the sword.