Romans 1:19

This is so because that which may be known of God is manifest among them; for God has made it manifest to them.

Romans 1:20

For ever since the creation of the world his invisible nature, even his everlasting power and divinity, has been clearly seen, being perceived through the things that are made. So they have no excuse.

John 1:9

The true Light, which enlightens every man, was then coming into the world.

Acts 14:16-17

In bygone generations he allowed all the nations to walk in their own ways,

Acts 17:23-30

"For as I was passing along and observing your objects of worship, I found also an altar with this inscription, 'TO AN UNKNOWN GOD.' What you are worshiping in ignorance, this I am proclaiming to you.

Treasury of Scripture Knowledge

Summary

Because that which may be known of God is manifest in them; for God hath shewed it unto them.

For god

Bible References

That which

Romans 1:20
For ever since the creation of the world his invisible nature, even his everlasting power and divinity, has been clearly seen, being perceived through the things that are made. So they have no excuse.
Acts 14:16
In bygone generations he allowed all the nations to walk in their own ways,
Acts 17:23
"For as I was passing along and observing your objects of worship, I found also an altar with this inscription, 'TO AN UNKNOWN GOD.' What you are worshiping in ignorance, this I am proclaiming to you.

For god

John 1:9
The true Light, which enlightens every man, was then coming into the world.