Secu was a town or geographic feature where Saul stopped to ask for Samuel and David. It was between Gibeah and Ramah. Secu was especially noted for its large well, which was a natural place to go for information (1 Samuel 19:22).
Bible dictionary
Secu
Adapted by Mission Mutual (Aquifer Open Bible Dictionary) from Tyndale Open Bible Dictionary © 2023 Tyndale House Publishers. CC BY-SA 4.0. About the sources