וּמִיַּ֣ד בֶּן־נֵכָ֗ר לֹ֥א תַקְרִ֛יבוּ אֶת־לֶ֥חֶם אֱלֹהֵיכֶ֖ם מִכָּל־אֵ֑לֶּה כִּ֣י מָשְׁחָתָ֤ם בָּהֶם֙ מ֣וּם בָּ֔ם לֹ֥א יֵרָצ֖וּ לָכֶֽם׃ (פ)
Neither from the hand of a foreigner shall ye offer the bread of your God of any of these, because their corruption is in them, there is a blemish in them; they shall not be accepted for you.
Read kabbalistic (mystical) interpretation of Leviticus 22:25: and classical mystical sources.