a tenth for each of the seven lambs;
Here is, I. The appointment of the pass-over sacrifices; not that which was the chief, the paschal lamb (sufficient instructions had formerly been given concerning that), but those which were to be offered upon the seven days of unleavened bread, which followed it, Num 28:17-25.
Commenting on Numbers 28:16-31
Num 28:26-31 The same number of sacrifices is appointed for the day of the first-fruits, i.e., for the feast of Weeks or Harvest feast (cf. Lev 23:15-22). The festal burnt-offering and sin-offering of this one day was independent of the supplementary burnt-offering and sin-offering of the wave-loaves appointed in Lev 23:18, and was to be offered before these and after the daily morning sacrifice.
Commenting on Numbers 28:26-31