2 Samuel 15:7 - Coke's Commentary on the Holy Bible

After forty years— Or rather, after four years. The Syriac and Arabic, whom Houbigant follows, read after four years. As there is no event from which the forty years can be dated, very great has been the distress of the advocates for that reading. But Josephus, Theodoret, the Manuscripts mentioned in the Benedictine edition of Jerome's version, the canon of the Hebrew verity, (supposed to be made about the ninth century, and altered by some correcting hand,) the reading of the famous Latin Bible of Sextus, the Latin manuscript in Exeter college library, marked C. 2 Samuel 2:13 and the ancient Latin manuscript written in Gothic characters, and the variations of which are published in Blanchini's Vindiciae, all have it four. See Kennicott's Dissert. vol. 2: p. 358 and Houbigant's note.