Charles Ellicott Commentary Leviticus 3:17

"It shall be a perpetual statute throughout your generations in all your dwellings, that ye shall eat neither fat nor blood." — Leviticus 3:17 (ASV)

A perpetual statute for your generations throughout all your dwellings. —Better, a statute for ever throughout your generations in all your dwellings; so the Authorised Version in the only three other passages in which it occurs. (Leviticus 23:21, where it is inverted; and Leviticus 23:31.)

That is, the law not to eat fat of cattle, sheep, or goats is to be binding upon the Israelites throughout all their future generations and is applicable to any place wherever they may dwell. As the full legislative formula only occurs four times in the Pentateuch and is restricted to this book, it is important to render it uniformly in all the four passages. For the import of this statute see Leviticus 7:23-25.