1 Samuel 9:24

(and the cook lifteth up the leg, and that which is on it, and setteth before Saul), and he saith, 'Lo, that which is left; set it before thee -- eat, for to this appointed season it is kept for thee, saying, The people I have called;' and Saul eateth with Samuel on that day.

Leviticus 7:32-33

and the right leg ye do make a heave-offering to the priest of the sacrifices of your peace-offerings;

Ezekiel 24:4

To gather its pieces unto it, every good piece, Thigh and shoulder, the choice of the bones to fill in.

Exodus 29:22

And thou hast taken from the ram the fat, and the fat tail, and the fat which is covering the inwards, and the redundance on the liver, and the two kidneys, and the fat which is on them, and the right leg, for it is a ram of consecration,

Exodus 29:27

and thou hast sanctified the breast of the wave-offering, and the leg of the heave-offering, which hath been waved, and which hath been lifted up from the ram of the consecration, of that which is for Aaron, and of that which is for his sons;

Numbers 18:18

and their flesh is thine, as the breast of the wave-offering, and as the right leg, it is thine;

Treasury of Scripture Knowledge

Summary

And the cook took up the shoulder, and that which was upon it, and set it before Saul. And Samuel said, Behold that which is left! set it before thee, and eat: for unto this time hath it been kept for thee since I said, I have invited the people. So Saul did eat with Samuel that day.

Bible References

The shoulder

Leviticus 7:32
and the right leg ye do make a heave-offering to the priest of the sacrifices of your peace-offerings;
Ezekiel 24:4
To gather its pieces unto it, every good piece, Thigh and shoulder, the choice of the bones to fill in.