1 Corinthians 11:19 in the King James Version
For there must be also heresies among you, that they which are approved may be made manifest among you.
Context
18 For first of all, when you come together in the assembly, I hear that divisions exist among you, and I partly believe it.
19 For there also must be factions among you, that those who are approved may be revealed among you.
20 When therefore you assemble yourselves together, it is not the Lord’s supper that you eat.