Revelation 3:15

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

Matthew 24:12

Wickedness and lawlessness will increase. The love of many will grow cold.

Romans 12:11

Do not lag behind in diligence. Be fervent in spirit serving God.

Revelation 3:1

To the angel of the congregation in Sardis write: He who has the seven Spirits of God and the seven stars says these things: 'I know your works, that you have a name that you are alive, and you are [really] dead.

Deuteronomy 5:29

If only they had such a heart in them that they would respect (reverence) me and obey all my commandments for as long as they live! Then things would go well for them and their children from generation to generation.'

Joshua 24:15-24

If you are not willing to serve him, decide today whom you will serve, the gods your ancestors worshiped in Mesopotamia or the gods of the Amorites, in whose land you are now living. As for my family and me, we will serve Jehovah.'

1 Kings 18:21

Elijah came near to all the people and said: How long will you balance (bounce back and forth) between two opinions? If Jehovah is God, then give worship to him. If Baal is, give worship to him. The people did not answer him.

Psalm 81:11-13

My people did not listen to my voice. Israel did not obey me.

Proverbs 23:26

My son, give me your heart and let your eyes keep my ways.

Hosea 7:8

Ephraim mixes with other nations. Ephraim, you are like a half-baked loaf of bread.

Hosea 10:2

The peoples hearts are deceitful. They must suffer for their sins. Jehovah will break down their altars and destroy their sacred pillars.

Zephaniah 1:5-6

I will remove those who bow down to worship the host of heaven on the housetops and those who bow down and swear to Jehovah and yet swear by Malcolm.

Matthew 6:24

You cannot serve two masters. You will hate one and love the other. You will be loyal to one master and despise the other. You cannot serve both God and money (wealth) (material possessions).

Matthew 10:37

He who loves father or mother more than me is not worthy of me. He who loves son or daughter more than me is not worthy of me.

Luke 14:27-28

Those who do not carry their own stake and come after me may not be my disciples.

1 Corinthians 16:22

If any man does not love the Lord Jesus Christ, let him be accursed. Come O Lord!

2 Corinthians 12:20

I am afraid that I may come and find you different from what I want you to be, and that you may find me different from what you want me to be. I fear that there may be rivalry, jealousy, hot tempers, selfish ambition, slander, gossip, arrogance, and disorderly conduct.

Philippians 1:9

I pray that your love may abound yet more and more in knowledge and all discernment.

2 Thessalonians 1:3

Our friends, we should thank God at all times for you. It is right for us to do so, because your faith is growing so much and the love each of you has for the other abounds toward each other.

James 1:8

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

1 Peter 1:22

You have purified your hearts by obeying the truth. You have genuine affection for the brothers and sisters. So always love one another intensely (extremely) (deeply) from the heart.

Revelation 2:2

I know your works, and your labor, and your patience. I also know how you cannot tolerate those who are evil. You tested those who say they are apostles. They are not apostles. You found them to be liars.

Revelation 2:4

However I have this against you: you do not love me now as you did at first.

Treasury of Scripture Knowledge

Bible References

That

Revelation 2:4
However I have this against you: you do not love me now as you did at first.
Matthew 24:12
Wickedness and lawlessness will increase. The love of many will grow cold.
Philippians 1:9
I pray that your love may abound yet more and more in knowledge and all discernment.
2 Thessalonians 1:3
Our friends, we should thank God at all times for you. It is right for us to do so, because your faith is growing so much and the love each of you has for the other abounds toward each other.
1 Peter 1:22
You have purified your hearts by obeying the truth. You have genuine affection for the brothers and sisters. So always love one another intensely (extremely) (deeply) from the heart.

I would

Deuteronomy 5:29
If only they had such a heart in them that they would respect (reverence) me and obey all my commandments for as long as they live! Then things would go well for them and their children from generation to generation.'
Psalm 81:11
My people did not listen to my voice. Israel did not obey me.
2 Corinthians 12:20
I am afraid that I may come and find you different from what I want you to be, and that you may find me different from what you want me to be. I fear that there may be rivalry, jealousy, hot tempers, selfish ambition, slander, gossip, arrogance, and disorderly conduct.

Thou

Joshua 24:15
If you are not willing to serve him, decide today whom you will serve, the gods your ancestors worshiped in Mesopotamia or the gods of the Amorites, in whose land you are now living. As for my family and me, we will serve Jehovah.'
1 Kings 18:21
Elijah came near to all the people and said: How long will you balance (bounce back and forth) between two opinions? If Jehovah is God, then give worship to him. If Baal is, give worship to him. The people did not answer him.
Proverbs 23:26
My son, give me your heart and let your eyes keep my ways.
Hosea 7:8
Ephraim mixes with other nations. Ephraim, you are like a half-baked loaf of bread.
Hosea 10:2
The peoples hearts are deceitful. They must suffer for their sins. Jehovah will break down their altars and destroy their sacred pillars.
Zephaniah 1:5
I will remove those who bow down to worship the host of heaven on the housetops and those who bow down and swear to Jehovah and yet swear by Malcolm.
Matthew 6:24
You cannot serve two masters. You will hate one and love the other. You will be loyal to one master and despise the other. You cannot serve both God and money (wealth) (material possessions).
Matthew 10:37
He who loves father or mother more than me is not worthy of me. He who loves son or daughter more than me is not worthy of me.
Luke 14:27
Those who do not carry their own stake and come after me may not be my disciples.
1 Corinthians 16:22
If any man does not love the Lord Jesus Christ, let him be accursed. Come O Lord!
James 1:8
A double-minded man is unstable (inconsistent) in all his ways.

General references

Luke 11:23
He who is not with me is against me. He who does not help me gather actually scatters.