Exodus 16:35

16:35 Now the Israelites ate manna forty years, until they came to a land that was inhabited; they ate manna until they came to the border of the land of Canaan.

Exodus 26:2

26:2 The length of each curtain is to be forty-two feet, and the width of each curtain is to be six feet – the same size for each of the curtains.

Exodus 26:8

26:8 The length of each curtain is to be forty-five feet, and the width of each curtain is to be six feet – the same size for the eleven curtains.

Exodus 26:19

26:19 and you are to make forty silver bases to go under the twenty frames – two bases under the first frame for its two projections, and likewise two bases under the next frame for its two projections;

Exodus 36:24

36:24 He made forty silver bases under the twenty frames – two bases under the first frame for its two projections, and likewise two bases under the next frame for its two projections,