Revelation 3:15

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

Matthew 24:12

And because iniquity will abound, the love of many will become cold.

Romans 12:11

Not slothful in business; fervent in spirit; serving the Lord;

Revelation 3:1

And to the angel of the church in Sardis write; These things saith he that hath the seven Spirits of God, and the seven stars; I know thy works, that thou hast a name, that thou livest, and art dead.

Deuteronomy 5:29

O that there were such a heart in them, that they would fear me, and keep all my commandments always, that it might be well with them, and with their children for ever!

Joshua 24:15-24

And if it seemeth evil to you to serve the LORD, choose you this day whom ye will serve, whether the gods which your fathers served that were on the other side of the flood, or the gods of the Amorites in whose land ye dwell: but as for me and my house, we will serve the LORD.

1 Kings 18:21

And Elijah came to all the people, and said, How long halt ye between two opinions? if the LORD is God, follow him: but if Baal, then follow him. And the people answered him not a word.

Psalm 81:11-13

But my people would not hearken to my voice; and Israel would not obey me.

Proverbs 23:26

My son, give me thy heart, and let thy eyes observe my ways.

Hosea 7:8

Ephraim, he hath mixed himself among the people; Ephraim is a cake not turned.

Hosea 10:2

Their heart is divided; now shall they be found faulty: he shall break down their altars, he shall spoil their images.

Zephaniah 1:5-6

And them that worship the host of heaven upon the house-tops; and them that worship and that swear by the LORD, and that swear by Malcham;

Matthew 6:24

No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.

Matthew 10:37

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

Luke 14:27-28

And whoever doth not bear his cross, and come after me, cannot be my disciple.

1 Corinthians 16:22

If any man loveth not the Lord Jesus Christ, let him be Anathema, Maran-atha.

2 Corinthians 12:20

For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found by you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults:

Philippians 1:9

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

2 Thessalonians 1:3

We are bound to thank God always for you, brethren, as it is meet, because your faith groweth exceedingly, and the charity of every one of you all towards each other aboundeth;

James 1:8

A man unsettled in his opinions is unstable in all his ways.

1 Peter 1:22

Seeing ye have purified your souls in obeying the truth through the Spirit to unfeigned love of the brethren, see that ye love one another with a pure heart fervently:

Revelation 2:2

I know thy works, and thy labor, and thy patience, and that thou canst not bear them who are evil; and thou hast tried them who say they are apostles, and are not; and hast found them liars:

Revelation 2:4

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

Treasury of Scripture Knowledge

Bible References

That

Revelation 2:4
Nevertheless, I have somewhat against thee, because thou hast left thy first love.
Matthew 24:12
And because iniquity will abound, the love of many will become cold.
Philippians 1:9
And this I pray, that your love may abound yet more and more in knowledge and in all judgment;
2 Thessalonians 1:3
We are bound to thank God always for you, brethren, as it is meet, because your faith groweth exceedingly, and the charity of every one of you all towards each other aboundeth;
1 Peter 1:22
Seeing ye have purified your souls in obeying the truth through the Spirit to unfeigned love of the brethren, see that ye love one another with a pure heart fervently:

I would

Deuteronomy 5:29
O that there were such a heart in them, that they would fear me, and keep all my commandments always, that it might be well with them, and with their children for ever!
Psalm 81:11
But my people would not hearken to my voice; and Israel would not obey me.
2 Corinthians 12:20
For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found by you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults:

Thou

Joshua 24:15
And if it seemeth evil to you to serve the LORD, choose you this day whom ye will serve, whether the gods which your fathers served that were on the other side of the flood, or the gods of the Amorites in whose land ye dwell: but as for me and my house, we will serve the LORD.
1 Kings 18:21
And Elijah came to all the people, and said, How long halt ye between two opinions? if the LORD is God, follow him: but if Baal, then follow him. And the people answered him not a word.
Proverbs 23:26
My son, give me thy heart, and let thy eyes observe my ways.
Hosea 7:8
Ephraim, he hath mixed himself among the people; Ephraim is a cake not turned.
Hosea 10:2
Their heart is divided; now shall they be found faulty: he shall break down their altars, he shall spoil their images.
Zephaniah 1:5
And them that worship the host of heaven upon the house-tops; and them that worship and that swear by the LORD, and that swear by Malcham;
Matthew 6:24
No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
Matthew 10:37
He that loveth father or mother more than me, is not worthy of me: and he that loveth son or daughter more than me, is not worthy of me.
Luke 14:27
And whoever doth not bear his cross, and come after me, cannot be my disciple.
1 Corinthians 16:22
If any man loveth not the Lord Jesus Christ, let him be Anathema, Maran-atha.
James 1:8
A man unsettled in his opinions is unstable in all his ways.

General references

Luke 11:23
He that is not with me is against me: and he that gathereth not with me scattereth.