1 Corinthians 8:1 in the World English Bible
Now concerning things sacrificed to idols: We know that we all have knowledge. Knowledge puffs up, but love builds up.
Context
1 Now as touching things offered unto idols, we know that we all have knowledge. Knowledge puffeth up, but charity edifieth.
2 And if any man think that he knoweth any thing, he knoweth nothing yet as he ought to know.