NET
13 This was the priests’ routine with the people. Whenever anyone was making a sacrifice, the priest’s attendant would come with a three-pronged fork in his hand, just as the meat was boiling.
Darby
13 And the priests' custom with the people was, when any man sacrificed a sacrifice, the priest's servant came, when the flesh was cooked, with a flesh-hook of three prongs in his hand;
KJV
13 And the priests' custom with the people [was, that], when any man offered sacrifice, the priest's servant came, while the flesh was in seething, with a fleshhook of three teeth in his hand;