Deuteronomy 7:3 Neither shalt you make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.
The scripture specifically says that Lot was mocked by his sons in law, not by his daughters, so it is possible that the daughters might at least, have taken Lot seriously, were it not for the mockery of the men. It reminds us of those passages written in the Bible which speak against marriages with unbelievers, as the results of such unions can carry eternal risks.
The following is to be understood in the context of the marriage of Lot’s daughters to those men of Sodom, who had apparently been trained from their youth to make light of religion. That influence, and mindset can deliver one of the most blistering scourges to anything that resembles godliness, and, in retrospect, it would have been a good thing, if Lot’s daughters had read the following counsel first, before tying the knot.
[Testimonies Vol. 4 pp 505 > 506] The plea is sometimes made that the unbeliever is favorable to religion and is all that could be desired in a companion except in one thing—he is not a Christian. Spiritual declension commences the moment the vow is made at the altar; religious fervor is dampened, and one stronghold after another is broken down, until both stand side by side under the black banner of Satan.
Deuteronomy 7:4 For they will turn away thy son from following me, that they may serve other gods: so will the anger of the Lord be kindled against you, and destroy thee suddenly.
May The Lord add His blessing to the study of His word. God bless!