Exodus 18:2

Now Jethro, Moses' father-in-law, had taken Zipporah, Moses' wife, after he had sent her home,

And Moses was content to dwell with the man, and he gave Moses his daughter Zipporah.

Then Zipporah took a flint and cut off her son's foreskin and touched Moses' feet with it and said, "Surely you are a bridegroom of blood to me!"

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Then Jethro, Moses' father in law, took Zipporah, Moses' wife, after he had sent her back,

And Moses was content to dwell with the man, and he gave Moses his daughter Zipporah.

Then Zipporah took a flint and cut off her son's foreskin and touched Moses' feet with it and said, "Surely you are a bridegroom of blood to me!"

So Moses listened to the voice of his father-in-law and did all that he had said.

At this retort Moses fled and became an exile in the land of Midian, where he became the father of two sons.