A.T. Robertson Commentary Romans 2:24

"For the name of God is blasphemed among the Gentiles because of you, even as it is written." — Romans 2:24 (ASV)

Because of you (δι' υμας). Free quotation from the LXX of Isa 52:5. The Jews were jealous for the Name of God and would not pronounce the Tetragrammaton and yet acted so that the Gentiles blasphemed that Name.