Contradiction with Genesis 12:3
This verse states that all families of the earth will be blessed through Abraham, whereas Zechariah 8:13 suggests the house of Judah and Israel themselves will be a blessing.
Genesis 12:3: And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed.
Contradiction with Deuteronomy 28:15
This verse indicates curses for disobedience, contradicting Zechariah 8:13 where Israel and Judah are to become a blessing.
Deuteronomy 28:15: But it shall come to pass, if thou wilt not hearken unto the voice of the LORD thy God, to observe to do all his commandments and his statutes which I command thee this day; that all these curses shall come upon thee, and overtake thee:
Contradiction with Lamentations 2:1
This verse describes the LORD's anger and removal of Israel's glory, contradicting the notion of them being a blessing as in Zechariah 8:13.
Lamentations 2:1: How hath the Lord covered the daughter of Zion with a cloud in his anger, [and] cast down from heaven unto the earth the beauty of Israel, and remembered not his footstool in the day of his anger!
Contradiction with Ezekiel 5:11
It discusses God's fury and judgment on Israel, in contrast to the blessing foretold in Zechariah 8:13.
Ezekiel 5:11: Wherefore, [as] I live, saith the Lord GOD; Surely, because thou hast defiled my sanctuary with all thy detestable things, and with all thine abominations, therefore will I also diminish [thee]; neither shall mine eye spare, neither will I have any pity.
Contradiction with Romans 11:25
Talks about a partial hardening of Israel, which contrasts with the idea of them being a blessing in Zechariah 8:13.
Romans 11:25: For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in. [blindness: or, hardness]
Contradiction with Psalm 44:11-12
Describes Israel being scattered and scorned, inconsistent with the promising future in Zechariah 8:13.
Psalm 44:11-12: Thou hast given us like sheep [appointed] for meat; and hast scattered us among the heathen. [like...: Heb. as sheep of meat]
Contradiction with Jeremiah 42:18
Speaks of wrath and desolation for Israel, opposed to the blessing theme in Zechariah 8:13.
Jeremiah 42:18: For thus saith the LORD of hosts, the God of Israel; As mine anger and my fury hath been poured forth upon the inhabitants of Jerusalem; so shall my fury be poured forth upon you, when ye shall enter into Egypt: and ye shall be an execration, and an astonishment, and a curse, and a reproach; and ye shall see this place no more.
Contradiction with Amos 5:18
Warns about the day of the LORD being darkness for Israel, contrary to the positive future implied in Zechariah 8:13.
Amos 5:18: Woe unto you that desire the day of the LORD! to what end [is] it for you? the day of the LORD [is] darkness, and not light.
Contradiction with 2 Kings 17:18
Describes the LORD removing all descendants of Israel, which contradicts the restoration and blessing theme of Zechariah 8:13.
2 Kings 17:18: Therefore the LORD was very angry with Israel, and removed them out of his sight: there was none left but the tribe of Judah only.