1 Kings 2:39

But it came about at the end of three years, that two of the servants of Shimei ran away to Achish son of Maacah, king of Gath. And they told Shimei, saying, “Behold, your servants are in Gath.”

1 Samuel 21:10

Then David arose and fled that day from Saul, and went to Achish king of Gath.

1 Samuel 27:2-3

So David arose and crossed over, he and the six hundred men who were with him, to Achish the son of Maoch, king of Gath.

Treasury of Scripture Knowledge

Summary

And it came to pass at the end of three years, that two of the servants of Shimei ran away unto Achish son of Maachah king of Gath. And they told Shimei, saying, Behold, thy servants be in Gath.

Bible References

Achish

1 Samuel 21:10
Then David arose and fled that day from Saul, and went to Achish king of Gath.
1 Samuel 27:2
So David arose and crossed over, he and the six hundred men who were with him, to Achish the son of Maoch, king of Gath.