New Revised Standard Version
Indeed, there have to be factions among you, for only so will it become clear who among you are genuine.

Contemporary English Version
You are bound to argue with each other, but it is easy to see which of you have God's approval.

New American Bible
there have to be factions among you in order that [also] those who are approved among you may become known.

Douay-Rheims Bible
For there must be also heresies: that they also, who are approved may be made manifest among you.

For there must be also heresies: that they also, who are approved may be made manifest among you.

there.

Matthew 18:7 Woe to the world because of scandals. For it must needs be that scandals come: but nevertheless woe to that man by whom the scandal cometh.

Luke 17:1 And he said to his disciples: It is impossible that scandals should not come. But woe to him through whom they come!

Acts 20:30 And of your own selves shall arise men speaking perverse things, to draw away disciples after them.

1 Timothy 4:1,2 Now the Spirit manifestly saith that in the last times some shall depart from the faith, giving heed to spirits of error and doctrines of devils, . . .

2 Peter 2:1,2 But there were also false prophets among the people, even as there shall be among you lying teachers who shall bring in sects of perdition and deny the Lord who bought them: bringing upon themselves swift destruction. . . .

heresies.

Acts 5:17 Then the high priest rising up, and all they that were with him (which is the heresy of the Sadducees) were filled with envy.

Acts 15:5 But there arose of the sect of the Pharisees some that believed, saying: They must be circumcised and be commanded to observe the law of Moses.

Acts 24:5,14 We have found this to be a pestilent man and raising seditions among all the Jews throughout the world: and author of the sedition of the sect of the Nazarenes. . . .

Acts 26:5 Having known me from the beginning (if they will give testimony) that according to the most sure sect of our religion I lived, a Pharisee.

Acts 28:22 But we desire to hear of thee what thou thinkest: for as concerning this sect, we know that it is every where contradicted.

Galatians 5:20 Idolatry, witchcrafts, enmities, contentions, emulations, wraths, quarrels, dissensions, sects,

Titus 3:10 A man that is a heretic, after the first and second admonition, avoid:

*Gr:

which.

Deuteronomy 13:3 Thou shalt not hear the words of that prophet or dreamer: for the Lord your God trieth you, that it may appear whether you love him with all your heart, and with all your soul, or not.

Luke 2:35 And thy own soul a sword shall pierce, that, out of many hearts thoughts may be revealed.

2 Corinthians 13:5-7 Try your own selves if you be in the faith: prove ye yourselves. Know you not your own selves, that Christ Jesus is in you, unless perhaps you be reprobates? . . .

*Gr:

1 John 2:19 They went out from us but they were not of us. For if they had been of us, they would no doubt have remained with us: but that they may be manifest, that they are not all of us.