John Gill Bible Commentary

Thus were both the daughters of Lot with child by their father. We learn from hence what the best of men are when left to themselves; a good man, a righteous Lot, is guilty of crimes the most shocking; he exposed the chastity of his daughters to the men of Sodom, and now his daughters attacked him, and succeeded, being both with child by him; and this brought about by excessive drinking, a sin which often leads on to the foulest crimes, and therefore to be carefully avoided; these sins Lot fell into when as it were alone, on a mountain, in a cave, none but his family with him, and these only his two daughters; he that had stood his ground in the midst of Sodom, notwithstanding all the excesses of that place, the impurities in it, and the temptations that every day offered, now falls when seemingly out of the way of all: these sins and failings of good men are recorded for our admonition and caution, that we may shun all appearance of evil, and be careful lest we fall, and neither be presumptuous not self-confident, see Co1 10:12. . Genesis 19:37 gen 19:37 gen 19:37 gen 19:37And the firstborn bare a son, and called his name Moab,.... As if it was "Meab", from the father, as Aben Ezra, and so Josephus, that is, which she had by her father; and she was so far from being ashamed that it might be known in time to come, she gave him this name. Hillerus (w) makes it to be a compound of and and to signify "going into", or "lying with a father", which still more notoriously points to her own action. Drusius has another derivation of the word, at least proposes it, and renders it "aqua patris"; "mo" in the Egyptian language signifying "water", which is sometimes used for seed, see Isa 48:1, the same is the father of the Moabites unto this day; a people that lived on the borders of the land of Canaan, often troublesome to the Israelites, and frequently spoken of in the Old Testament. (w) Onomastic. Sacr. p. 414.