Verses with the word zipporah in the Old Testament (3 verses):

Exodus 2:21
And Moses was content to dwell with the man: and he gave Moses Zipporah his daughter.

Exodus 4:25
Then Zipporah took a sharp stone, and cut off the foreskin of her son, and cast it at his feet, and said, Surely a bloody husband art thou to me.

Exodus 18:2
Then Jethro, Moses' father in law, took Zipporah, Moses' wife, after he had sent her back,