King James Version
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;English Standard Version
The custom of the priests with the people was that when any man offered sacrifice, the priest's servant would come, while the meat was boiling, with a three-pronged fork in his hand,New International Version
Now it was the practice of the priests with the people that whenever anyone offered a sacrifice and while the meat was being boiled, the servant of the priest would come with a three-pronged fork in his hand.