Gideon is very clear about the fact that he’s receiving a word from the Lord. However, he still doesn’t understand that he is speaking to God, Himself, because he’s asking for sign, when God, Himself is standing right in front of him.
However, because of the reverence he has for the “emissary” of God that he is speaking to; he asked him to wait while he prepares an offering.
Jdg 6:18 Depart not hence, I pray thee, until I come unto thee, and bring forth my present, and set [it] before thee. And he said, I will tarry until thou come again.
Jdg 6:19 And Gideon went in, and made ready a kid, and unleavened cakes of an ephah of flour: the flesh he put in a basket, and he put the broth in a pot, and brought [it] out unto him under the oak, and presented [it].
This whole process took several hours, maybe even half the day. He had to go get the goat, kill it, clean it, and then cook it.
If you’ve ever had goat, you would know that in order to properly prepare it, you’ve got to cook it a minimum of 2 to 3 hours so that the meat gets tender enough. So Gideon makes this tasty stew for the Lord. Additionally he takes an ephah of flour to make the Lord bread.
a) a dry measure of quantity, equal to 3 seahs,10 omers; the same as the liquid measurebath; (about 9 imperial gallons (40 l), rabbinical writings give sizes of one-half this amount).
b) the receptacle for measuring or holding that amount
Now, I didn’t understand all that any better than you probably did; so I got the english translation.
1. a Hebrew unit of dry measure, equal to about a bushel (35 liters).
1. a unit of capacity redefined in 1964 by a reduction of 28 parts in a million to be exactly equal to one cubic decimeter. It is equivalent to 1.0567 U.S. liquid quarts and is equal to the volume of one kilogram of distilled water at 4°C.
1/10th of 35 quarts would be about 3 quarts of flour; so he made quite a bit of bread. I guess he wanted to make sure he fed Him well. It seems that he cooked the entire goat; and made, at a minimum, about 3 loaves of bread, or perhaps 1-2 dozen cakes. As they always say about having guests over to eat; it’s better to have too much then not enough.