Acts 17:23

For, passing through and examining your religious objects, I also found an altar on which had been engraved, TO AN UNKNOWN GOD. Whom therefore ye worship unknowingly, him I proclaim to you.

John 4:22

Ye worship what ye do not know. We worship what we know, because salvation is from the Jews.

Acts 17:30

Indeed therefore having overlooked the times of ignorance, God now commands for all men everywhere to repent.

2 Thessalonians 2:4

who opposes and exalts himself against all that is called God or an object of worship, so as for him to sit in the temple of God, as God, displaying himself that he is God.

Psalm 50:21

These things thou have done, and I kept silence. Thou thought that I was altogether such a one as thyself. [But] I will reprove thee, and set [them] in order before thine eyes.

Psalm 147:20

He has not dealt so with any nation. And as for his ordinances, they have not known them. Praise ye LORD.

Matthew 15:9

And in vain they worship me, teaching as doctrines the commandments of men.

John 8:54

Jesus answered, If I glorify myself, my glory is nothing. My Father is he who glorifies me, of whom ye say, He is our God.

John 17:3

And this is eternal life, that they should know thee the only TRUE God, and Jesus Christ whom thou sent.

John 17:25

And righteous Father, the world does not know thee, but I know thee, and these know that thou sent me.

Romans 1:20-25

For the invisible things of him from the creation of the world are clearly seen, being understood by the things made, both his eternal power and divinity, for them to be without excuse.

Romans 1:28

And just as they did not approve having God in knowledge, God gave them over to an unfit mind, to do things that are not fit;

1 Corinthians 1:21

For since in the wisdom of God the world did not know God through its wisdom, it pleased God through the foolishness of preaching to save those who believe.

1 Corinthians 8:5

For also since there are things called gods, whether in heaven or on the earth, as there are many gods and many lords,

2 Corinthians 4:4-6

in whom the god of this age has blinded the minds of the unbelieving, in order for the light of the good-news of the glory of the Christ (who is a likeness of God) not to shine forth to them.

Galatians 4:8-9

But of course not knowing God then, ye were in bondage to those in nature who are not gods,

Ephesians 2:12

that ye were at that time independent of Christ, alienated from the citizenship of Israel, and alien of the covenants of the promise, having no hope and godless in the world.

1 Timothy 1:17

Now to the King of the ages, immortal, invisible, alone wise, to God is honor and glory into the ages of the ages. Truly.

1 John 5:20

And we know that the Son of God comes, and has given us understanding, so that we may know the true. And we are in the true, in his Son Jesus Christ. This is the TRUE God, and the eternal life.

Treasury of Scripture Knowledge

Summary

For as I passed by, and beheld your devotions, I found an altar with this inscription, TO THE UNKNOWN GOD. Whom therefore ye ignorantly worship, him declare I unto you.

Bible References

Devotions

Romans 1:23
and changed the glory of the incorruptible God into an image like corruptible man, and of birds, and four-footed things, and creeping things.
1 Corinthians 8:5
For also since there are things called gods, whether in heaven or on the earth, as there are many gods and many lords,
2 Thessalonians 2:4
who opposes and exalts himself against all that is called God or an object of worship, so as for him to sit in the temple of God, as God, displaying himself that he is God.

To

Psalm 147:20
He has not dealt so with any nation. And as for his ordinances, they have not known them. Praise ye LORD.
John 17:3
And this is eternal life, that they should know thee the only TRUE God, and Jesus Christ whom thou sent.
Romans 1:20
For the invisible things of him from the creation of the world are clearly seen, being understood by the things made, both his eternal power and divinity, for them to be without excuse.
1 Corinthians 1:21
For since in the wisdom of God the world did not know God through its wisdom, it pleased God through the foolishness of preaching to save those who believe.
2 Corinthians 4:4
in whom the god of this age has blinded the minds of the unbelieving, in order for the light of the good-news of the glory of the Christ (who is a likeness of God) not to shine forth to them.
Galatians 4:8
But of course not knowing God then, ye were in bondage to those in nature who are not gods,
Ephesians 2:12
that ye were at that time independent of Christ, alienated from the citizenship of Israel, and alien of the covenants of the promise, having no hope and godless in the world.
1 Timothy 1:17
Now to the King of the ages, immortal, invisible, alone wise, to God is honor and glory into the ages of the ages. Truly.
1 John 5:20
And we know that the Son of God comes, and has given us understanding, so that we may know the true. And we are in the true, in his Son Jesus Christ. This is the TRUE God, and the eternal life.

Ignorantly

Acts 17:30
Indeed therefore having overlooked the times of ignorance, God now commands for all men everywhere to repent.
Psalm 50:21
These things thou have done, and I kept silence. Thou thought that I was altogether such a one as thyself. [But] I will reprove thee, and set [them] in order before thine eyes.
Matthew 15:9
And in vain they worship me, teaching as doctrines the commandments of men.
John 4:22
Ye worship what ye do not know. We worship what we know, because salvation is from the Jews.
John 8:54
Jesus answered, If I glorify myself, my glory is nothing. My Father is he who glorifies me, of whom ye say, He is our God.