2 Corinthians 6:15

And what harmony can Christ have with Belial? [Note: "Belial" means "worthlessness" and was used for referring to the devil]. Or, what does a believer have in common with an unbeliever?

Mark 16:16

The person who believes [i.e., the Gospel] and is immersed will be saved [i.e., from condemnation], but whoever does not believe it will be condemned.

Acts 5:14

And more and more believers were [being] added to the [people of the] Lord.

Acts 8:20

But Peter said to him, "You and your money will both be destroyed for thinking you could buy the gift from God with money.

1 Corinthians 10:20-21

[Certainly not!] But I am saying that the Gentile sacrifices are [really] offered to evil spirits and not to God. And I do not want you to have fellowship with evil spirits.

1 Timothy 5:8

But if anyone does not provide for [the needs of] his own [relatives], and especially for his own [immediate] family, he has denied the faith [i.e., the fundamental beliefs of Christianity], and is worse than an unbeliever.

1 John 5:11-13

And this is the testimony [of God]: He gave to us [the hope of] never ending life, and this life is [available through fellowship] in His Son.

Treasury of Scripture Knowledge

Summary

And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?

What concord

Bible References

What concord

1 Corinthians 10:20
[Certainly not!] But I am saying that the Gentile sacrifices are [really] offered to evil spirits and not to God. And I do not want you to have fellowship with evil spirits.

Or

Mark 16:16
The person who believes [i.e., the Gospel] and is immersed will be saved [i.e., from condemnation], but whoever does not believe it will be condemned.
Acts 8:20
But Peter said to him, "You and your money will both be destroyed for thinking you could buy the gift from God with money.
1 John 5:11
And this is the testimony [of God]: He gave to us [the hope of] never ending life, and this life is [available through fellowship] in His Son.

An

1 Timothy 5:8
But if anyone does not provide for [the needs of] his own [relatives], and especially for his own [immediate] family, he has denied the faith [i.e., the fundamental beliefs of Christianity], and is worse than an unbeliever.