(10) There came out among the Israelites a man whose mother was Israelite and whose father was Egyptian. And a fight broke out in the camp between that half-Israelite and a certain Israelite. (11) The son of the Israelite woman pronounced the Name in blasphemy, and he was brought to Moses—now his mother’s name was Shelomith daughter of Dibri of the tribe of Dan— (12) and he was placed in custody, until the decision of יהוה should be made clear to them. (13) And יהוה spoke to Moses, saying: (14) Take the blasphemer outside the camp; and let all who were within hearing lay their hands upon his head, and let the community leadership stone him. (15) And to the Israelite people speak thus: Anyone who blasphemes God shall bear the guilt; (16) and one who also pronounces the name יהוה shall be put to death. The community leadership shall stone that person; stranger or citizen—having thus pronounced the Name—shall be put to death. (17) If any party kills any human being, that person shall be put to death. (18) One who kills a beast shall make restitution for it: life for life. (19) If any party maims another [person]: what was done shall be done in return— (20) fracture for fracture, eye for eye, tooth for tooth. The injury inflicted on a human being shall be inflicted in return. (21) One who kills a beast shall make restitution for it; but one who kills a human being shall be put to death. (22) You shall have one standard for stranger and citizen alike: for I יהוה am your God. (23) Moses spoke thus to the Israelites. And they took the blasphemer outside the camp and pelted him with stones. The Israelites did as יהוה had commanded Moses.

בת דברי (from the root דבר “to speak”) — she was talkative — talking with every person, and in consequence of this she got into trouble.

(11) And it came to pass in those days, when Moses was grown up, that he went out to his brethren, and looked on their burdens; and he saw an Egyptian smiting a Hebrew, one of his brethren. (12) And he looked this way and that way, and when he saw that there was no man, he smote the Egyptian, and hid him in the sand. (13) And he went out the second day, and, behold, two men of the Hebrews were striving together; and he said to him that did the wrong: ‘Why are you hitting your fellow?’ (14) And he said: ‘Who made you a ruler and a judge over us? Are you thinking to kill me, as you killed the Egyptian?’ And Moses feared, and said: ‘Surely the thing is known.’ (15) Now when Pharaoh heard this thing, he sought to slay Moses. But Moses fled from the face of Pharaoh, and dwelt in the land of Midian; and he sat down by a well.

The LORD said to Moses in Midian, “Go back to Egypt, for all the men who sought to kill you are dead.”

Another interpretation: "And he saw their suffering" that they did not have rest. He went and said to Pharaoh, " One who has a slave, if he does not rest one day a week, he will die! While your slaves, if you don't allow them rest one day a week , they will die!" He said to them, "Go and do for them as you are saying." Moses went and established the Sabbath day for them to rest. "And he saw an Egyptian man." What did he see? R. Huna say in the name of Bar Kaprah, for 4 things the Israelites were redeemed from Egypt, one was for not changing their names (Shir ha-Shirim Rabbah, Vayikra Rabba 32). And from where do we learn that they didn't engage in adultery? Because it happened once and the verse publicized it, as it's written: And his mother's name was Shlomit bat Divri etc. (Lev 24:10). Our teachers say there were taskmasters among the Egyptians and officers from the Israelites, one taskmaster appointed over ten officers. One officer appointed over ten Israelites. And the taskmasters would go to the houses of the officers at daybreak to make them go call the workers. Once an Egyptian taskmaster went to [do so to] an Israelite officer and he set his eye on his wife who was beautiful without blemish. He called the man and brought him out of his house, then the Egyptian returned and had relations with his wife and she thought that he was her husband and became pregnant from him. Her husband returned and found the Egyptian leaving his house. He asked her, Did he touch you? She said yes, but I thought he was you. When the taskmaster saw that he suspected him he returned him to hard labor and struck him and sought to kill him. Moshe saw this and looked at him and saw with Ruah Hakodesh [prophetic inspiration] what he did in the house, and saw what would be done in the field, and said surely he deserves death, as it is written: "One who strikes a man shall die." And not only this, but moreover he slept with the wife of Datan and therefore deserved killing, as it says: "The adulterer and adulteress shall surely die" (Lev 20:10), and that is why it is written: "And he turned this way and that etc.," he saw what he did to him at home and what he did to him in the field.

Rav Huna said, in the name of Bar Kappara: due to four things Israel was redeemed from Egypt: they did not change their names, nor their language, did not speak lashon hara and there was none that had committed sexual immorality... And you say that there was none who committed sexual immorality? There was one, and the Text announced her: "and the name of his mother was Shelomit bat Dibri of the tribe of Dan. Shelomit: as Rabbi Levi says, she would continuously say "Shalom" to all she encountered. Bat Dibri: Rabbi Itzchak says: she brought a plague [dever] on her son. Of the Tribe of Dan: this is a shame for his mother, a shame for him, a shame for his family, a shame for the tribe from which he came.