then it shall be that whatever comes out from the doors of my house to meet me when I return in peace from the sons of Ammon, surely it shall belong to Jehovah, or I will offer it up instead of a burnt offering.

And build an altar to Jehovah your God upon the top of this rock, in an orderly manner, and take the second bull and offer a burnt sacrifice with the wood of the grove which you shall cut down.