Genesis 4:11

4:11 So now, you are banished from the ground, which has opened its mouth to receive your brother’s blood from your hand.

Genesis 29:8

29:8 “We can’t,” they said, “until all the flocks are gathered and the stone is rolled off the mouth of the well. Then we water the sheep.”

Genesis 42:27

42:27 When one of them opened his sack to get feed for his donkey at their resting place, he saw his money in the mouth of his sack.