Revelation 3:15

I know your works, that you are neither cold, nor hot: I wish that you were cold, or hot.

Matthew 24:12

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

Romans 12:11

in what requires diligence, be not slothful; in spirit, be fervent; in service, be devoted to the Lord;

Revelation 3:1

And to the angel of the church in Sardis, write: These things says he that has the seven spirits of God, and the seven stars; I know your works, that you have a name, that you live, and are dead.

Matthew 6:24

No one can serve two masters: for he will either hate the one and love the other; or he will hold to the one, and neglect the other. You can not serve God and riches.

Matthew 10:37

He that loves father or mother more than me, is not worthy of me: and he that loves son or daughter more than me, is not worthy of me:

Luke 14:27-28

And whoever does not bear his cross, and come after me, can not be my disciple.

1 Corinthians 16:22

If any one loves not the Lord Jesus Christ, let him be accursed. The Lord comes.

2 Corinthians 12:20

For I fear, lest when I come I shall find you not, such as I wish, and I shall be found by you not such as you wish: lest there shall be contentions, envies, excitements, strife, evil speaking, whisperings, party spirit, disorderly conduct:

Philippians 1:9

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

2 Thessalonians 1:3

We are bound to give thanks to God always for you, brethren, as it is right, because your faith grows exceedingly, and the love of every one of you all toward each other abounds:

James 1:8

A double-minded man is unstable in all his ways.

1 Peter 1:22

Having purified your souls in obeying the truth through the Spirit, to unfeigned love of the brethren, love one another with a pure heart fervently,

Revelation 2:2

I know your works, and your labor, and your patience; and that you can not bear with those who are evil, and that you have tried those who say they are apostles, and are not, and have found them liars;

Revelation 2:4

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

Treasury of Scripture Knowledge

Summary

I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.

General references

Bible References

That

Revelation 2:4
But I have this against you, that you have left your first love.
Matthew 24:12
and because iniquity abounds, the love of many will grow cold.
Philippians 1:9
I also pray for this, that your love may abound yet more and more in knowledge and all understanding,
2 Thessalonians 1:3
We are bound to give thanks to God always for you, brethren, as it is right, because your faith grows exceedingly, and the love of every one of you all toward each other abounds:
1 Peter 1:22
Having purified your souls in obeying the truth through the Spirit, to unfeigned love of the brethren, love one another with a pure heart fervently,

I would

2 Corinthians 12:20
For I fear, lest when I come I shall find you not, such as I wish, and I shall be found by you not such as you wish: lest there shall be contentions, envies, excitements, strife, evil speaking, whisperings, party spirit, disorderly conduct:

Thou

Matthew 6:24
No one can serve two masters: for he will either hate the one and love the other; or he will hold to the one, and neglect the other. You can not serve God and riches.
Matthew 10:37
He that loves father or mother more than me, is not worthy of me: and he that loves son or daughter more than me, is not worthy of me:
Luke 14:27
And whoever does not bear his cross, and come after me, can not be my disciple.
1 Corinthians 16:22
If any one loves not the Lord Jesus Christ, let him be accursed. The Lord comes.
James 1:8
A double-minded man is unstable in all his ways.

General references

Luke 11:23
He that is not with me, is against me; and he that gathers not with me, scatters.