Daniel 1:8

But Daniel laid on his heart that he would not defile himself with the king's food, nor with the wine which he drank. So he asked permission of the chief of the eunuchs that he might not defile himself.

Ezekiel 4:13-14

And Jehovah said, Even so shall the sons of Israel eat their defiled bread among the nations, where I will drive them.

Deuteronomy 32:38

Who ate the fat of their sacrifices and drank the wine of their drink offerings? Let them rise up and help you; let it be your hiding place.

Psalm 141:4

Let not my heart turn aside to any evil thing, to practice wicked works with men who work iniquity; and let me not eat of their delicacies.

Daniel 1:5

And the king gave them the portion of a day in its day from the king's food, and the wine which he drank, even to rear them three years, so that at their end they might stand before the king.

Hosea 9:3-4

They shall not dwell in Jehovah's land; but Ephraim shall return to Egypt, and they shall eat unclean things in Assyria.

2 Corinthians 9:7

Each one, as he purposes in his heart, let him give; not of grief, or of necessity, for God loves a cheerful giver.

Leviticus 11:45-47

For I am Jehovah who brought you up out of the land of Egypt, to be your God. You shall therefore be holy, for I am holy.

Ruth 1:17-18

Where you die, I will die, and there I will be buried. May Jehovah do so to me, and more also, if anything but death parts you and me.

1 Kings 5:5

And behold, I purpose to build a house to the name of Jehovah my God, as Jehovah spoke to David my father, saying, Your son whom I will set on your throne in your place; he shall build a house to My name.

Psalm 106:28

And they joined themselves to Baal-peor, and ate the sacrifices of the dead,

Psalm 119:106

I have sworn, and I raised it, that I will keep Your righteous judgments.

Psalm 119:115

Depart from me, you evil-doers, for I will keep the Commandments of my God.

Acts 10:14-16

But Peter said, Not so, Lord, for I have never eaten anything that is common or unclean.

Acts 11:23

who was glad when he had come and had seen the grace of God. And he exhorted all with purpose of heart to remain near to the Lord.

Romans 14:15-17

But if your brother is grieved with your food, you no longer walk according to love. Do not with your food destroy him for whom Christ died.

1 Corinthians 7:37

But he who stands steadfast in his heart, having no necessity, but who has authority over his own will (and has so judged in his heart that he will keep his virginity) he does well.

1 Corinthians 8:7-10

But this knowledge is not in all. But some being aware of the idol eat as an idolatrous sacrifice until now, and their conscience being weak is defiled.

1 Corinthians 10:18-21

Behold Israel after the flesh. Are not those who eat of the sacrifices also partakers of the altar?

1 Corinthians 10:28-31

But if anyone says to you, This is slain in sacrifice to idols, do not eat for the sake of him who showed it, and for conscience' sake; "for the earth is the Lord's, and the fullness of it";

Treasury of Scripture Knowledge

Summary

But Daniel purposed in his heart that he would not defile himself with the portion of the king's meat, nor with the wine which he drank: therefore he requested of the prince of the eunuchs that he might not defile himself.

Bible References

Purposed

Ruth 1:17
Where you die, I will die, and there I will be buried. May Jehovah do so to me, and more also, if anything but death parts you and me.
1 Kings 5:5
And behold, I purpose to build a house to the name of Jehovah my God, as Jehovah spoke to David my father, saying, Your son whom I will set on your throne in your place; he shall build a house to My name.
Psalm 119:106
I have sworn, and I raised it, that I will keep Your righteous judgments.
Acts 11:23
who was glad when he had come and had seen the grace of God. And he exhorted all with purpose of heart to remain near to the Lord.
1 Corinthians 7:37
But he who stands steadfast in his heart, having no necessity, but who has authority over his own will (and has so judged in his heart that he will keep his virginity) he does well.
2 Corinthians 9:7
Each one, as he purposes in his heart, let him give; not of grief, or of necessity, for God loves a cheerful giver.

Defile

Leviticus 11:45
For I am Jehovah who brought you up out of the land of Egypt, to be your God. You shall therefore be holy, for I am holy.
Deuteronomy 32:38
Who ate the fat of their sacrifices and drank the wine of their drink offerings? Let them rise up and help you; let it be your hiding place.
Psalm 106:28
And they joined themselves to Baal-peor, and ate the sacrifices of the dead,
Psalm 141:4
Let not my heart turn aside to any evil thing, to practice wicked works with men who work iniquity; and let me not eat of their delicacies.
Ezekiel 4:13
And Jehovah said, Even so shall the sons of Israel eat their defiled bread among the nations, where I will drive them.
Hosea 9:3
They shall not dwell in Jehovah's land; but Ephraim shall return to Egypt, and they shall eat unclean things in Assyria.
Acts 10:14
But Peter said, Not so, Lord, for I have never eaten anything that is common or unclean.
Romans 14:15
But if your brother is grieved with your food, you no longer walk according to love. Do not with your food destroy him for whom Christ died.
1 Corinthians 8:7
But this knowledge is not in all. But some being aware of the idol eat as an idolatrous sacrifice until now, and their conscience being weak is defiled.
1 Corinthians 10:18
Behold Israel after the flesh. Are not those who eat of the sacrifices also partakers of the altar?

General references

Leviticus 11:2
Speak to the sons of Israel, saying, These are the animals which you shall eat among all the animals that are in the earth.
Proverbs 23:3
Do not desire his delicacies, for they are deceitful food.
Ezekiel 4:13
And Jehovah said, Even so shall the sons of Israel eat their defiled bread among the nations, where I will drive them.