1 Timothy 5:12

"Having damnation, because they have cast off their first faith."

Cross References (ranked by relevance)

I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:

My brethren, be not many masters, knowing that we shall receive the greater condemnation.

For the time is come that judgment must begin at the house of God: and if it first begin at us, what shall the end be of them that obey not the gospel of God?

1 Corinthians 11:34

And if any man hunger, let him eat at home; that ye come not together unto condemnation. And the rest will I set in order when I come.