SECU.A place name which appears only in the late narrative of 1Sa_19:22 in connexion with Ramah, Samuels home, and especially with the great cistern or well of the threshing-floor. Perhaps the name represents a word in the original best rendered the height, referring to the highest part of the town of Ramah.
H. L. Willett.
Hastings' Dictionary of the Bible
Edited by James Hastings, D.D. Published in 1909
sē?kū (שּׂכוּ, sēkhū; Codex Vaticanus ἐν τῷ Σεφεί, en tṓ Sepheı́; Codex Alexandrinus ἐν Σοκχώ, en Sokchṓ; the King James Version Sechu): This name occurs only in the account of David's visit to Samuel (1Sa_19:22). Saul, we are told, went to ?Ramah, and came to the great well that is in Secu,? where he inquired after Samuel and David. It evidently lay between the residence of Saul at Gibeah and Ramah. It is impossible to come to any sure conclusion regarding it. Conder suggested its identification with Khirbet Suweikeh, which lies to the South of Bı̄reh. This is possible, but perhaps we should read with the Septuagint's Codex Vaticanus, ?He came to the cistern of the threshing-floor that is on the bare hill? (en tō Sephei). The threshing-floors in the East are naturally on high exposed ground where this is possible, and often form part of the area whence water in the rainy season is conducted to cisterns. This might have been a place actually within the city of Ramah.
International Standard Bible Encyclopedia
PRINTER 1915.