Exodus 6:10-12 BRG Bible (BRG)
10 And the Lord spake unto Moses, saying,
11 Go in, speak unto Pharaoh king of Egypt, that he let the children of Israel go out of his land.
12 And Moses spake before the Lord, saying, Behold, the children of Israel have not hearkened unto me; how then shall Pharaoh hear me, who am of uncircumcised lips?
Exodus 6:10-12 New International Version (NIV)
10 Then the Lord said to Moses, 11 “Go, tell Pharaoh king of Egypt to let the Israelites go out of his country.”
12 But Moses said to the Lord, “If the Israelites will not listen to me, why would Pharaoh listen to me, since I speak with faltering lips[a]?”