Psalm 50 and Romans 2

I have let a brief on psalm 50 out of the gate at PoC.  I refrained from pointing out how every so called Christian should read the last 8 verses. This sermon is very like to Romans 2 and the result very like Romans 12:1.  If one who is different from you offers thanksgiving to God and you offer your morality, which of you do you think will be "shown in the salvation of God"?