Acts 17:23

for, passing through, and considering your objects of worship, I found also an altar on which had been inscribed, TO AN UNKNOWN GOD. What, therefore, in ignorance ye worship, this I declare to you.

Romans 2:17-2

But, if you are called a Jew, and are resting upon the law, and are boasting in 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, passing through, and considering your objects of worship, I found also an altar on which had been inscribed, TO AN UNKNOWN GOD. What, therefore, in ignorance ye worship, this I declare to you.
Romans 2:17
But, if you are called a Jew, and are resting upon the law, and are boasting in God,
Romans 3:1
What, then, is the advantage of the Jew? Or what is the profit of circumcision?