Original Verse:
1st Corinthians Chapter 11 Verse 19For divisions are necessary among you, in order that those who have God's approval may be clearly seen among you.

Reference Verses:
Deuteronomy Chapter 13 Verse 3Then give no attention to the words of that prophet or that dreamer of dreams: for the Lord your God is testing you, to see if all the love of your heart and soul is given to him.
1st John Chapter 2 Verse 19They went out from us but they were not of us; if they had been of us they would still be with us: but they went out from us so that it might be made clear that they were not of us.
2nd Corinthians Chapter 12 Verse 20For I have a fear that, when I come, you may not be answering to my desire, and that I may not be answering to yours; that there may be fighting, hate, angry feeling, divisions, evil talk about others, secrets, thoughts of pride, outbursts against authority;