Then Jacob offered sacrifice; either to give God thanks for the great mercies and deliverances vouchsafed to him, or to beg God's blessing upon the present treaty, and upon their whole family. But it is not so probable that Jacob would choose that time for the offering of sacrifices when Laban was present, whom he could neither honestly admit to them, nor conveniently exclude from them. And therefore, seeing the same Hebrew word signifies killing as well as sacrificing, as appears from Numbers 22:40 1 Samuel 28:24 1 Kings 1:9 2 Chronicles 18:2, &c., I rather understand it of his killing of beasts, in order to a feast which he made for his brethren, whom he called, as it here follows, to eat bread, & c., under which phrase all meats are usually comprehended in Scripture, as hath been already noted, and will appear hereafter. And this practice was usual in those times, to confirm covenants by a feast. See Genesis 26:30.
Related Commentaries of Genesis 31:54
Genesis 31:54
54 Then Jacob offeredi sacrifice upon the mount, and called his brethren to eat bread: and they did eat bread, and tarried all night in the mount.