Genesis 6:1-4 summarize what led to God's rejection of the pre-flood civilization: men chose wives solely on the basis of sex appeal and external beauty.

The church may fear that the Lord is delaying His coming, and scoffers make the seeming delay worse. However, God is giving people opportunity for repentance.

Doubting that Christ will return has always been problematic for the faithful weak as well as a tool of the heretics denying the second coming of Christ.