You truly are ignorant of the scriptures, aren't you? And you love to project that ignorance unto others too.
Tell me, please, what part of this passage you don't understand. Verse 11, perhaps? I'll be happy to explain to explain it to you.
Rom 3:9-18
9 What shall we conclude then? Are we any better? Not at all! We have already made the charge that Jews and Gentiles alike are all under sin. 10 As it is written:
"There is no one righteous, not even one;
11 there is no one who understands,
no one who seeks God.
12 All have turned away,
they have together become worthless;
there is no one who does good,
not even one."
13 "Their throats are open graves;
their tongues practice deceit."
"The poison of vipers is on their lips."
14 "Their mouths are full of cursing and bitterness."
15 "Their feet are swift to shed blood;
16 ruin and misery mark their ways,
17 and the way of peace they do not know."
18 "There is no fear of God before their eyes."
NIV
So...how do the Jews differ from the Gentiles again?