Exodus 8:26

8:26 But Moses said, “That would not be the right thing to do, for the sacrifices we make to the Lord our God would be an abomination to the Egyptians. If we make sacrifices that are an abomination to the Egyptians right before their eyes, will they not stone us?

Exodus 34:24

34:24 For I will drive out the nations before you and enlarge your borders; no one will covet your land when you go up to appear before the Lord your God three times in the year.