Revelation 2:4

But I have this against you, that you are turned away from your first love.

Matthew 24:12-13

And because wrongdoing will be increased, the love of most people will become cold.

Jeremiah 2:2-5

Go and say in the ears of Jerusalem, The Lord says, I still keep the memory of your kind heart when you were young, and your love when you became my bride; how you went after me in the waste of sand, in an unplanted land.

Philippians 1:9

And my prayer is that you may be increased more and more in knowledge and experience;

Philippians 3:13-16

Brothers, it is clear to me that I have not come to that knowledge; but one thing I do, letting go those things which are past, and stretching out to the things which are before,

1 Thessalonians 4:9-10

But about loving the brothers, there is no need for me to say anything to you in this letter: for you have the teaching of God that love for one another is right and necessary;

2 Thessalonians 1:3

It is right for us to give praise to God at all times for you, brothers, because of the great increase of your faith, and the wealth of your love for one another;

Hebrews 6:10-11

For God is true, and will not put away from him the memory of your work and of your love for his name, in the help which you gave and still give to the saints.

Revelation 2:14

But I have some things against you, because you have with you those who keep the teaching of Balaam, by whose suggestion Balak made the children of Israel go out of the right way, taking food which was offered to false gods, and going after the desires of the flesh.

Revelation 2:20

But I have this against you, that you let the woman Jezebel say she is a prophet and give false teaching, making my servants go after the desires of the flesh and take food offered to false gods.

Revelation 3:14-17

And to the angel of the church in Laodicea say: These things says the true and certain witness, the head of God's new order:

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 some things against you, because you have with you those who keep the teaching of Balaam, by whose suggestion Balak made the children of Israel go out of the right way, taking food which was offered to false gods, and going after the desires of the flesh.

General references

Matthew 25:7
Then all those virgins got up, and made ready their lights.
Hebrews 13:1
Go on loving your brothers in the faith.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain