During Noah's time, God did not have pity on the "ungodly people" of the world. He destroyed them with a flood, though He did save (only) eight people.....

Lot lived right and was greatly troubled by the terrible way those wicked people were living. He was a good man, and day after day he suffered because of the evil things he saw and heard. So.... THE LORD RESCUED HIM. This shows that the Lord knows how to rescue "godly people" from their sufferings and to "punish evil people" while they wait for the day of judgment. The Lord is especially hard on "people" (ANY PEOPLE) who disobey Him and don't think of anything except their own filthy desires.

THESE PEOPLE are no better than senseless animals that.... LIVE BY THEIR FEELINGS (not by faith in God) and are born to be caught and killed. THEY speak evil of things they don't know anything about. But their own corrupt deeds will destroy them. THEY have done evil, and they will be rewarded with evil.

THEY think it is fun to have wild parties during the day. THEY are immoral, and the meals they eat with you are spoiled by the shameful and selfish way they carry on. ALL THEY think about is having sex with someone else's husband or wife. There is no end to their wicked deeds. THEY trick people who are easily fooled, and their minds are filled with greedy thoughts. But.....THEY are headed for trouble! (Tribulation)

THEY (the same people) HAVE LEFT THE TRUE ROAD (they were on) and have (now) gone down the WRONG PATH. (They left the narrow path - they were on)

THEY promise freedom to everyone. (GRACE, GRACE) But they are merely slaves of filthy living, because people (any people - even believers!) ARE SLAVES of whatever controls them.

When THEY (same people) learned about our Lord and Savior Jesus Christ, THEY ESCAPED (were saved) from the filthy things of this world. BUT (NOW) THEY ARE AGAIN caught up and controlled by these filthy things, and NOW THEY are in worse shape than they were at first. 

For it would be better FOR THEM not to have known "THE WAY of righteousness," (Jesus) than, AFTER KNOWING it, (Him)  to TURN BACK from the holy commandment they were instructed to live by. (From 2 Peter 2)