John Gill Commentary 1 Samuel 28:25

"and she brought it before Saul, and before his servants; and they did eat. Then they rose up, and went away that night." — 1 Samuel 28:25 (ASV)

And she brought [it] before Saul, and before his servants, and
they did eat
Of the fatted calf, and unleavened bread, which she set upon a table before them, in the best manner she could:

then they rose up, and went away that night ;
that it might not be seen in what house they had been, and that they might get to the camp without being discovered by the Philistines, or known by the Israelites that they had been out.