The man who walks in righteousness, speaks in the
way, hates sin and unrighteousness, and keeps his hands pure from
the ears from hearing the unjust judgment of blood closes the eyes from
unrighteousness: he shall dwell in the lofty cave of the strong rock.
in chpt. 78 he makes the claim that Christ was this man of
righteousness and that he was born in a cave:
But when the Child was born in Bethlehem, since Joseph could not find a lodging in that village, he took up his quarters in a certain cave near the village; and while they were there Mary brought forth the Christ and placed Him in a manger, and here the Magi who came from Arabia found Him.