Matthew 24:12

and because iniquity abounds, the love of many will grow cold.

James 4:1-4

Whence come wars and strifes among you? Come they not hence, even of your passions, which war in your members?

James 5:1-6

Come, now, you rich men, weep and lament for your miseries that are coming upon you.

Revelation 2:4-5

But I have this against you, that you have left your first love.

Revelation 2:10

Fear none of the things which you are about to suffer; behold, the devil will throw some of you into prison, that you may be tried: and you shall have affliction ten days. Be faithful till death, and I will give you the crown of life.

Revelation 3:15

I know your works, that you are neither cold, nor hot: I wish that you were 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 I have this against you, that you have left your first love.
Revelation 3:15
I know your works, that you are neither cold, nor hot: I wish that you were cold, or hot.