Exodo  23, 22-3

But if thou shalt indeed obey his voice, and do all that I speak; then I will be an enemy unto thine enemies, and an adversary unto thine adversaries. For the nation and kingdom that will not serve thee shall perish; yea, those nations shall be utterly wasted. 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.
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