We must supply the omitted verb ediwca (pursued) from verse Romans 9:31. That explains the rest.
They stumbled at the stone of stumbling (prosekoyan tw liqw tou proskommatov). The quotation is from Isaiah 8:14. Proskoptw means to cut (koptw) against (prov) as in Matthew 4:6; John 11:9 f. The Jews found Christ a skandalon (I Corinthians 1:23).
Other Robertson's Word Pictures (NT) entries containing Romans 9:32:
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