Exodus 16:20
Notwithstanding they hearkened not unto Moses; but some of them left of it until the morning, and it bred worms, and stank: and Moses was wroth with them.
Cross-reference
Exodus 16:24 records the Sabbath manna kept overnight without spoiling, directly contrasting the worms and stench from the disobedience in v20.
Exodus 16:22 shows the obedient gathering of double manna on the sixth day, contrasting with the disobedience in v20 where leftovers spoiled.
Matthew 6:19 echoes the decay of hoarded manna: earthly treasures are subject to moth and rust, just as the manna bred worms when stored disobediently.
Luke 12:15 warns against greed, which caused the Israelites to hoard manna and face its corruption. Both teach contentment with daily provision.
Luke 12:33 contrasts earthly treasure that decays (like manna) with heavenly treasure that never fails.
Hebrews 13:5 urges contentment and freedom from love of money, directly countering the hoarding mindset that led to the manna rotting.
James 5:2 describes wealth rotting and moths eating clothes, mirroring the manna that bred worms when kept beyond its day.
James 5:3 continues the corrosion theme—hoarded gold and silver corrode, just as hoarded manna bred worms. Both condemn storing up perishable goods.
Leviticus 22:30 commands the thank offering be eaten the same day, mirroring the manna rule against leaving food until morning in Ex16:20.