1 Chronicles 4:3

And these were of the father of Etam: Jezreel, Ishma, and Idbash, and the name of their sister was Hazelelponi.

Judges 15:11

Then three thousand men of Judah went to the cleft of the rock Etam and said to Samson, Knowest thou not that the Philistines are rulers over us? What is this that thou hast done unto us? And he said unto them, As they did unto me, so have I done unto them.

2 Chronicles 11:6

He built Bethlehem and Etam and Tekoa

Treasury of Scripture Knowledge

Summary

And these were of the father of Etam; Jezreel, and Ishma, and Idbash: and the name of their sister was Hazelelponi:

Bible References

Etam

Judges 15:11
Then three thousand men of Judah went to the cleft of the rock Etam and said to Samson, Knowest thou not that the Philistines are rulers over us? What is this that thou hast done unto us? And he said unto them, As they did unto me, so have I done unto them.
2 Chronicles 11:6
He built Bethlehem and Etam and Tekoa