Acts 17:23

For as I passed along, and observed the objects of your worship, I found also an altar with this inscription, 'TO AN UNKNOWN GOD.'What therefore you worship as unknown, this I proclaim to you.

Romans 2:17-2

But if you call yourself a Jew, and rely on the law and boast of your relation to God

Treasury of Scripture Knowledge

Summary

{To the chief Musician on Neginoth, A Psalm or Song of Asaph.} In Judah is God known: his name is great in Israel.

Bible References

In judah

Acts 17:23
For as I passed along, and observed the objects of your worship, I found also an altar with this inscription, 'TO AN UNKNOWN GOD.'What therefore you worship as unknown, this I proclaim to you.
Romans 2:17
But if you call yourself a Jew, and rely on the law and boast of your relation to God
Romans 3:1
Then what advantage has the Jew, or what is the value of circumcision?