for the showbread: It was the priests' office to place this bread before the Lord; and it was their privilege to feed on the old loaves when they were replaced by the new. 1 Chronicles 9:31-32; Exodus 25:30; Leviticus 24:5-9; 1 Kings 7:48; 2 Chronicles 13:11, 2 Chronicles 29:18; Nehemiah 10:33; Matthew 12:4; Hebrews 9:2
the fine flour: 1 Chronicles 9:29-34; Leviticus 6:20-23
unleavened: Leviticus 2:4-7, Leviticus 7:9
pan: or, flat plate
for all manner of measure: The standards of all weights and measures were in the sanctuary; and therefore the Levites had the inspection of weights and measures of every kind, that no fraud might in this way be committed. Honesty is inseparably connected with piety; and hence the Levites, being sufficiently numerous, were employed to superintend the former, as well as the latter. Leviticus 19:35-36; Numbers 3:50