And Jacob set up a pillar—the former pillar (Genesis 28:18) having probably fallen down and disappeared—in the place where he (God) talked with him (to commemorate the interview), even a pillar of stone.
The setting up of pillars, according to Tuch a peculiarity of the Elohist, appears to have been a favorite practice of Jacob's: witness the first pillar at Bethel (Genesis 28:18), the pillar on Galeed (Genesis 31:45), the second pillar at Bethel (Genesis 35:14), the pillar over Rachel's grave (Genesis 35:20).
And he poured a drink offering thereon. This is the first mention of those sacrificial libations which afterwards became so prominent in connection with the Mosaic ritual (Exodus 29:40, Exodus 29:41; Le Exodus 23:13, Exodus 23:18, 37; Numbers 6:15; and elsewhere).
Under the law the נֶסֶךְ—σπονδεῖον σπονδή (LXX.) libamentum, libamen (Vulgate); frankopfer (Luther)—consisted of a fourth part of a hin of wine, which was equal to about a third of a gallon. And he poured oil thereon—as he did on the previous occasion (Genesis 28:18, q.
v.).