Offered sacrifice upon the mount - It is very likely that Laban joined in this solemn religious rite, and that, having offered the blood and fat to God, they feasted upon the sacrifice.

Then Jacob offered sacrifice upon the mount,.... On Mount Gilead, not in a religious way, in which he could not join with Laban, or admit him to it; but in a civil way he "slew a slaughter" (s), or rather made one; that is, as Jarchi explains it, he slew cattle for a feast, as it was usual to make feasts for the several parties concerned in covenant, see Genesis 26:30,

and called his brethren, to eat bread; the, men that came with Laban, and him also, these he invited to his feast, for all sorts of food is called bread:

and they did eat bread, and tarried all night in the mount; this affair between Laban and Jacob had took up the whole day, at evening they feasted together upon the covenant being made, and then tarried all night to take their rest.

(s) "et mactavit mactationem", Drusius, Cartwright, Schmidt, Ainsworth.

Then Jacob offered sacrifice upon the mount, and called his brethren to eat bread: and they did eat bread, and tarried all night in the mount.

31:54 And Jacob sware by the fear of his father Isaac - The God whom his father Isaac feared, who had never served other gods, as Abraham and Nahor had done.

offered...: or, killed beasts

31:43-55 Laban could neither justify himself nor condemn Jacob, therefore desires to hear no more of that matter. He is not willing to own himself in fault, as he ought to have done. But he proposes a covenant of friendship between them, to which Jacob readily agrees. A heap of stones was raised, to keep up the memory of the event, writing being then not known or little used. A sacrifice of peace offerings was offered. Peace with God puts true comfort into our peace with our friends. They did eat bread together, partaking of the feast upon the sacrifice. In ancient times covenants of friendship were ratified by the parties eating and drinking together. God is judge between contending parties, and he will judge righteously; whoever do wrong, it is at their peril. They gave a new name to the place, The heap of witness. After this angry parley, they part friends. God is often better to us than our fears, and overrules the spirits of men in our favour, beyond what we could have expected; for it is not in vain to trust in him.