Moses spoke before the Lord, saying, “Behold, the Israelites have not listened to me. How then shall Pharaoh listen to me, as I am of uncircumcised lips?”
Moses said to God, “I am going to the Israelites and will say to them, ‘The God of your fathers has sent me to you.’ When they say to me, ‘What is His name?’ what shall I say to them?”
Then Moses said to the Lord, “O my Lord, I am not eloquent, neither before nor since You have spoken to Your servant. But I am slow of speech, and of a slow tongue.”
And the Lord spoke to Moses and to Aaron, and gave them a command for the Israelites, and for Pharaoh, king of Egypt, to bring the Israelites out of the land of Egypt.
And I said: “Woe is me! For I am undone because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips. For my eyes have seen the King, the Lord of Hosts.”
To whom shall I speak and give warning that they may hear? Behold, their ears are closed, and they cannot listen. Behold, the word of the Lord is a reproach to them; they have no delight in it.
Egypt, Judah, Edom, the Ammonites, Moab, and all who dwell in the wilderness who clip the hair on their temples, for all these nations are uncircumcised, and all the house of Israel are uncircumcised of heart.
and that I also have walked contrary to them and have brought them into the land of their enemies; if then their uncircumcised hearts are humbled, and they then accept the punishment of their iniquity,
The Lord your God will circumcise your heart and the heart of your descendants to love the Lord your God with all your heart and with all your soul, so that you may live.