Genesis 18:2

18:2 Abraham looked up and saw three men standing across from him. When he saw them he ran from the entrance of the tent to meet them and bowed low to the ground.

Genesis 18:10

18:10 One of them said, “I will surely return to you when the season comes round again, and your wife Sarah will have a son!” (Now Sarah was listening at the entrance to the tent, not far behind him.

Genesis 31:34

31:34 (Now Rachel had taken the idols and put them inside her camel’s saddle and sat on them.) Laban searched the whole tent, but did not find them.