NET

31 then whoever is the first to come through the doors of my house to meet me when I return safely from fighting the Ammonites—he will belong to the Lord and I will offer him up as a burnt sacrifice.”

Darby

31 then shall that which cometh forth from the door of my house to meet me, when I return in peace from the children of Ammon, be Jehovah's, and I will offer it up for a burnt-offering.

KJV

31 Then it shall be, that whatsoever cometh forth of the doors of my house to meet me, when I return in peace from the children of Ammon, shall surely be the LORD'S, and I will offer it up for a burnt offering.