Slew sheep and oven - Making a royal feast, in reference to his inauguration. As he had Abiathar the priest with him, no doubt these animals were offered sacrificially, and then the guests fed on the flesh of the victims. He had not only a splendid feast, but a great sacrifice; and he gave by this a popular color to his pretensions, by affecting to receive his authority from God.
Adonijah‘s feast was probably of a sacrificial character, and intended to inaugurate him as king. Compare the “sacrifices” of Absalom 2 Samuel 15:12.
Zoheleth - No satisfactory explanation has been given of this name. Large blocks of stone always attract attention in the East, and receive names which are often drawn from some trivial circumstance. Sinai and Palestine are full of such “Hajars,” which correspond to the “Ebens” or “stones” of Holy Scripture. (Compare Genesis 28:22; Joshua 4:9; 1 Samuel 6:14.) For En-Rogel, see the margin reference.