Genesis 12:3 doesn’t mention ‘Israel’ at all:

“I will bless those who bless you [Abraham] and curse those who curse you [Abraham]; and all the families of the earth will be blessed through you [Abraham’s seed: Jesus Christ].”

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The sign that Rep. Jim Jordan and Rep. Mike Johnson are proudly standing by says “Blessed are those who Bless Israel.”

Steven Ben-Nun wrote in a comment below the photo (click on photo to see):

“That is not what it says. It says nothing about Israel, but that all families will be blessed through Abraham, that was through his seed Jesus Christ! Now you got it from a real Jew! – Steven Ben-Nun, Israeli News Live, 10/17/23

Related:

(video) Steven Ben-Nun: Does God Really Bless Those Who Bless Israel? — The most misquoted verse must be Genesis 12:3, which applies to Abraham, then Jesus Christ, his seed in Gen. 17