Exodus 16:18-20

New Revised Standard Version, Anglicised Catholic Edition

¹⁸ But when they measured it with an omer, those who gathered much had nothing over, and those who gathered little had no shortage; they gathered as much as each of them needed. ¹⁹ And Moses said to them, ‘Let no one leave any of it over until morning.’ ²⁰ But they did not listen to Moses; some left part of it until morning, and it bred worms and became foul. And Moses was angry with them.