Exodus 6:12
Moses spoke before Yahweh, saying, "Behold, the children of Israel haven't listened to me. How then shall Pharaoh listen to me, who am of uncircumcised lips?"
Exodus 4:10
Moses said to Yahweh, "O Lord, I am not eloquent, neither before now, nor since you have spoken to your servant; for I am slow of speech, and of a slow tongue."
Exodus 6:30
Moses said before Yahweh, "Behold, I am of uncircumcised lips, and how shall Pharaoh listen to me?"
Jeremiah 1:6
Then I said, "Ah, Lord Yahweh! Behold, I don't know how to speak; for I am a child."
Exodus 6:9
Moses spoke so to the children of Israel, but they didn't listen to Moses for anguish of spirit, and for cruel bondage.
Jeremiah 6:10
To whom shall I speak and testify, that they may hear? Behold, their ear is uncircumcised, and they can't listen. Behold, the word of Yahweh has become a reproach to them. They have no delight in it.
Exodus 3:13
Moses said to God, "Behold, when I come to the children of Israel, and tell them, 'The God of your fathers has sent me to you;' and they ask me, 'What is his name?' What should I tell them?"
Exodus 4:29-31
Moses and Aaron went and gathered together all the elders of the children of Israel.
Exodus 5:19-21
The officers of the children of Israel saw that they were in trouble, when it was said, "You shall not diminish anything from your daily quota of bricks!"
Leviticus 26:41
I also walked contrary to them, and brought them into the land of their enemies: if then their uncircumcised heart is humbled, and they then accept the punishment of their iniquity;
Deuteronomy 30:6
Yahweh your God will circumcise your heart, and the heart of your seed, to love Yahweh your God with all your heart, and with all your soul, that you may live.
Isaiah 6:5
Then 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, Yahweh of Armies!"
Jeremiah 9:26
Egypt, and Judah, and Edom, and the children of Ammon, and Moab, and all that have the corners [of their hair] cut off, who dwell in the wilderness; for all the nations are uncircumcised, and all the house of Israel are uncircumcised in heart.
Acts 7:51
"You stiff-necked and uncircumcised in heart and ears, you always resist the Holy Spirit! As your fathers did, so you do.