Matthew 24:12

And because sin will abound, many people will grow cold in their love [for one another].

James 4:1-4

Where do conflicts and fights among you come from? Do they not come from your [desire for] pleasures which produces inner conflict?

James 5:1-6

Come on now, you rich people, cry and wail over the miseries that are coming upon you.

Revelation 2:4-5

"But, this is what I have against you, that you have forsaken your first love [i.e., love for Christ and His church].

Revelation 2:10

Do not be afraid of the things you are about to suffer. [For] look, the devil is about to throw some of you into prison, so that you may be tested, and you will suffer persecution for ten days. [But], you should be faithful [to God] even to the point of dying [for Him], and I will give you the crown of [never ending] life.

Revelation 3:15

I know about your deeds, that you are neither [spiritually] cold nor hot. I wish you were [either] cold or hot.

Treasury of Scripture Knowledge

Summary

And because iniquity shall abound, the love of many shall wax cold.

Bible References

The love

Revelation 2:4
"But, this is what I have against you, that you have forsaken your first love [i.e., love for Christ and His church].
Revelation 3:15
I know about your deeds, that you are neither [spiritually] cold nor hot. I wish you were [either] cold or hot.