Revelation 2:4

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

Matthew 24:12-13

and because wickedness shall abound the love of the many shall become cold:

Philippians 1:9

And this I pray, that your love may abound yet more and more in knowledge and all understanding,

Philippians 3:13-16

I consider not myself, brothers, to have attained it; but this one thing I do; forgetting the things behind, and reaching forward to those before,

1 Thessalonians 4:9-10

But concerning brotherly love, you have no need that I should write to you; for you are taught by God to love one another;

2 Thessalonians 1:3

We ought to thank God always for you, brothers, as is fit, because your faith increases greatly, and the love of every one of you all one for another abounds,

Hebrews 6:10-11

For God is not unjust, to forget your work, and the love which you showed for his name, having served the saints and [still] serving them.

Revelation 2:14

But I have a few things against you; you have there those who hold the doctrine of Balaam, who taught Balak to put an occasion of sin before the children of Israel, both to eat things offered to idols and to commit fornication.

Revelation 2:20

But I have against you that you allow your wife Jezebel, who says she is a prophetess and teaches and deceives my servants to commit fornication and eat things offered to idols.

Revelation 3:14-17

And to the angel of the church in Laodicea write, These things says the Amen, the faithful and true witness, the beginning of the creation of God,

Treasury of Scripture Knowledge

Summary

Nevertheless I have somewhat against thee, because thou hast left thy first love.

General references

Bible References

I have

Revelation 2:14
But I have a few things against you; you have there those who hold the doctrine of Balaam, who taught Balak to put an occasion of sin before the children of Israel, both to eat things offered to idols and to commit fornication.

General references

Matthew 25:7
Then all those virgins arose and trimmed their own lamps.
Hebrews 13:1
Let brotherly love continue.