Exodus 16:20

16:20 But they did not listen to Moses; some kept part of it until morning, and it was full of worms and began to stink, and Moses was angry with them.

Exodus 16:33

16:33 Moses said to Aaron, “Take a jar and put in it an omer full of manna, and place it before the Lord to be kept for generations to come.”

Exodus 20:18

20:18 All the people were seeing the thundering and the lightning, and heard the sound of the horn, and saw the mountain smoking – and when the people saw it they trembled with fear and kept their distance.