This law requires a grain offering to be offered when a burnt offering is made. AT: "with the grain offering required with it" or "with the grain offering to accompany it" (See: [[rc://en/ta/man/translate/figs-explicit]])
# on the rock
"on the altar." The altar Manoah sacrificed the offering on was a rock.
# He did something
"The angel did something"
# the angel of Yahweh went up in the flame of the altar
"lay with their faces to the ground." This is a sign of respect and honor, but it also shows their fear of Yahweh. (See: [[rc://en/ta/man/translate/translate-symaction]])