Who are the Kenites?

Please tell me what Kenites are? I've heard that they are descendents of a union between Satan and Eve.

The Kenites are first mentioned in Genesis 15:18. Their land was among those promised to Abram. Thus, they existed before him. His seed and theirs likely mixed with theirs through Midian, a son that Keturah bare him (Genesis 25:1-2). The Kenites show up later when we meet Jethro. He was the Midianite priest,  who was Moses' father-in-law. (Judges 1:16) Jethro is also called "Hobab," the son of Raguel in Judges 4:11 and Numbers 10:29. He is also called "Reuel" in Exodus 2:18.

The Kenites had a very special place in Israel's history. They traveled with the children of Israel in the desert and therefore identified with them. Through Moses, you might say they are the first cousins of Israel, and enjoyed many of their blessings. Balaam said of them "Strong is thy dwellingplace, and thou puttest thy nest in a rock."  We are familiar of the story of Jael (the wife of Heber the Kenite,) who put the tent nail through the temples of Sissera, the captain of the Canaanite host. (Judges 4:21) Her husband's name "Heber" means "Friend" in Hebrew. (The name "Hebrew" was from the same root. It was given to  Abraham, the friend of God.)

When Saul went to slay the Amalekites, he told the Kenites to depart lest any of them were destroyed also (1 Samuel 15:6).  In 1Samuel 30:29, David sends the spoils of war to the cities of Judah and the Kenites. In 1 Chronicles 2:55, the father of the house of Rechab was a Kenite, who was among the families of scribes.  From that point on, the Kenites were reckoned in the house of Rechab and were called Rechabites.

In 2 Kings 10:15, Jehu went to his friend Jehonadab, the son of Rechab, asking if his heart was right. The two of them wiped out the wicked religion of Baalism together in northern Israel.

Daily Proverb

Proverbs 18:4

The words of a man's mouth are as deep waters, and the wellspring of wisdom as a flowing brook.