1 Corinthians 11:19

11:19 For there must in fact be divisions among you, so that those of you who are approved may be evident.

Galatians 5:20

5:20 idolatry, sorcery, hostilities, strife, jealousy, outbursts of anger, selfish rivalries, dissensions, factions,

Galatians 5:2

5:2 Listen! I, Paul, tell you that if you let yourselves be circumcised, Christ will be of no benefit to you at all!

Galatians 2:1

Confirmation from the Jerusalem Apostles

2:1 Then after fourteen years I went up to Jerusalem again with Barnabas, taking Titus along too.