Leviticus 22:25

Neither any gotten from a stranger's hand shall you offer as the bread of your God of any of these; because their defect is in them, and blemishes are in them: they shall not be accepted for you.

Leviticus 21:6

They shall be holy unto their God, and not profane the name of their God: for the offerings of the LORD made by fire, and the bread of their God, they do offer: therefore they shall be holy.

Leviticus 21:8

You shall sanctify him therefore; for he offers the bread of your God: he shall be holy unto you: for I the LORD, who sanctifies you, am holy.

Leviticus 21:21-22

No man that has a blemish of the descendants of Aaron the priest shall come near to offer the offerings of the LORD made by fire: he has a blemish; he shall not come near to offer the bread of his God.

Numbers 15:14-16

And if a stranger sojourns with you, or whosoever is among you in your generations, and will offer an offering made by fire, of a sweet aroma unto the LORD; as you do, so he shall do.

Numbers 16:40

To be a memorial unto the children of Israel, that no stranger, who is not of the descendants of Aaron, come near to offer incense before the LORD; that he become not as Korah, and as his company: as the LORD said to him by the hand of Moses.

Ezra 6:8-10

Moreover I make a decree of what you shall do for the elders of these Jews for the building of this house of God: that of the king's goods, even of the tribute beyond the river, without delay expenses be given unto these men, that they be not hindered.

Malachi 1:7-8

You offer polluted bread upon my altar; and you say, How have we polluted you? In that you say, The table of the LORD is contemptible.

Malachi 1:12-14

But you have profaned it, in that you say, The table of the LORD is polluted; and the fruit thereof, even his food, is contemptible.

Ephesians 2:12

That at that time you were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:

1 John 5:18

We know that whosoever is born of God sins not; but he that is begotten of God keeps himself, and that wicked one touches him not.

Treasury of Scripture Knowledge

Summary

Neither from a stranger's hand shall ye offer the bread of your God of any of these; because their corruption is in them, and blemishes be in them: they shall not be accepted for you.

General references

Bible References

A stranger's

Numbers 15:14
And if a stranger sojourns with you, or whosoever is among you in your generations, and will offer an offering made by fire, of a sweet aroma unto the LORD; as you do, so he shall do.
Numbers 16:40
To be a memorial unto the children of Israel, that no stranger, who is not of the descendants of Aaron, come near to offer incense before the LORD; that he become not as Korah, and as his company: as the LORD said to him by the hand of Moses.
Ezra 6:8
Moreover I make a decree of what you shall do for the elders of these Jews for the building of this house of God: that of the king's goods, even of the tribute beyond the river, without delay expenses be given unto these men, that they be not hindered.

The bread

Leviticus 21:6
They shall be holy unto their God, and not profane the name of their God: for the offerings of the LORD made by fire, and the bread of their God, they do offer: therefore they shall be holy.
Malachi 1:7
You offer polluted bread upon my altar; and you say, How have we polluted you? In that you say, The table of the LORD is contemptible.

Because

Ephesians 2:12
That at that time you were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
1 John 5:18
We know that whosoever is born of God sins not; but he that is begotten of God keeps himself, and that wicked one touches him not.

General references

Leviticus 22:20
But whatsoever has a blemish, that shall you not offer: for it shall not be acceptable for you.
Numbers 9:14
And if a stranger shall sojourn among you, and will keep the passover unto the LORD; according to the ordinance of the passover, and according to the manner thereof, so shall he do: you shall have one ordinance, both for the stranger, and for him that was born in the land.