You are not to sacrifice the Passover animal in any of the towns that the LORD your God is giving you.
Much of the communion between God and his people Israel was kept up, and a face of religion preserved in the nation, by the three yearly feasts, the institution of which, and the laws concerning them, we have several times met with already; and here they are repeated. I.
Commenting on Deuteronomy 16:1-17
Thou mayest not sacrifice the passover within any of thy gates,.... Or cities, as the Targum of Jonathan, so called because they usually had gates to them, in which public affairs were transacted; but in none of these, only in the city of Jerusalem, the place the Lord chose, might they kill the passover and eat it, and other passover offerings: which the Lord thy...
Thou mayest not sacrifice the passover within any of thy gates--The passover was to be observed nowhere but in the court of the tabernacle or temple, as it was not a religious feast or sacramental occasion merely, but an actual sacrifice (Exo 12:27; Exo 23:18; Exo 34:25).