Rachab. — The Old Testament records are silent as to the marriage of Salmon with the harlot of Jericho. When they were compiled it was probably thought of as a blot rather than a glory; but the fact may have been preserved in the traditions of the house of David. It has been conjectured that Salmon may have been one of the two unnamed spies whose lives were saved by Rahab, when he was doing the work which Caleb had done before him. The mention of Rahab in James 2:25; Hebrews 11:31, shows that her fame had risen at the time when St. Matthew wrote. The Talmud legends, curiously enough, reckon eight prophets among her descendants, including Jeremiah and Baruch, but not any of the line of David. Assuming the connection between St. Matthew and St. James, which has been shown in the Introduction to this Gospel to be probable, the mention of Rahab by both takes its place as an interesting coincidence.
Booz. — The succession is the same as in Ruth 4:21. The new fact of Salmon’s marriage explains some of the features of that history — the readiness with which the sons of Naomi marry two women of the Moabites; the absence of any repugnance to such a union on the part of Boaz; perhaps the reference to Tamar in the benediction of Ruth 4:12. Salmon would seem to have been the first of the house to have had land at Bethlehem (1 Chronicles 2:54), and to have gained this in part through his adoption into the family of Caleb.