Exodus 6:12
And Moses spoke before Jehovah, saying, Lo, the children of Israel do not hearken to me: how then should Pharaoh hearken to me, to me of uncircumcised lips?
Exodus 4:10
And Moses said to Jehovah, Ah Lord! I am not eloquent, neither heretofore nor since thou hast spoken to thy servant, for I am slow of speech and of a slow tongue.
Exodus 6:30
And Moses said before Jehovah, Behold, I am of uncircumcised lips, and how will Pharaoh hearken unto me?
Jeremiah 1:6
And I said, Alas, Lord Jehovah! behold, I cannot speak; for I am a child.
Exodus 6:9
And Moses spoke thus to the children of Israel; but they did not listen to Moses from anguish of spirit, and from hard service.
Jeremiah 6:10
To whom shall I speak and testify, that they may hear? Behold, their ear is uncircumcised, and they cannot hearken: behold, the word of Jehovah is unto them a reproach; they have no delight in it.
Exodus 3:13
And Moses said to God, Behold, when I come unto the children of Israel, and shall say unto them, The God of your fathers hath sent me unto you; and they shall say, What is his name? what shall I say unto them?
Exodus 4:29-31
And Moses and Aaron went and gathered all the elders of the children of Israel;
Exodus 5:19-21
And the officers of the children of Israel saw that it stood ill with them, because it was said, Ye shall not diminish anything from your bricks, the daily work.
Leviticus 26:41
so that I also walked contrary unto them, and brought them into the land of their enemies. If then their uncircumcised heart be humbled, and they then accept the punishment of their iniquity,
Deuteronomy 30:6
And Jehovah thy God will circumcise thy heart, and the heart of thy seed, to love Jehovah thy God with all thy heart and with all thy soul, that thou mayest live.
Isaiah 6:5
And I said, Woe unto me! for I am undone; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, Jehovah of hosts.
Jeremiah 9:26
Egypt, and Judah, and Edom, and the children of Ammon, and Moab, and all that have the corners of their beard cut off, that dwell in the wilderness: for all the nations are uncircumcised, and all the house of Israel are uncircumcised in heart.
Acts 7:51
O stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Spirit; as your fathers, ye also.