Exodus 6:9

6:9 Moses told this to the Israelites, but they did not listen to him because of their discouragement and hard labor.

Exodus 6:12

6:12 But Moses replied to the Lord, “If the Israelites did not listen to me, then how will Pharaoh listen to me, since I speak with difficulty?”

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.