Denomination Differences

Reformed Beliefs

a.k.a.

Calvinist

How does one get saved?

Sola fide: Repent of your sins and believe in Jesus Christ's death and resurrection alone to save you.

Who gets saved?

Those who God chooses to call will be saved and no one else.

Can one lose his salvation?

Eternal security: No, once a Christian is saved, he is always saved.

Who gets baptized and why?

Saved people and their infant children get baptized as a sign of God's grace.

Source

What is the trinity?

The Trinity is God existing as one god in three equal, eternal, cosubstantial persons: God the Father, God the Son (Jesus Christ), and God the Holy Spirit.

What is the human nature?

Total depravity: Human nature is corrupt, naturally inclined to evil, and incapable of choosing God on his own.

Are we guilty of Adam's original sin?

Federalism: Yes, Adam represented all of the human race, and all are guilty of his sin.

Are Christians required to keep the Old Testament ceremonial laws?

No, the ceremonial laws of Judaism were fulfilled and done away with by Jesus.

Can Christians become sinless in this earthly life?

No, although Christians can and should sin less, they can never become sinless in this life.

Do the elements of communion become the body and blood of Christ?

No, the elements do not become the body and blood of Christ, but Christ is present in an unknown way.

Can one be baptized of behalf of someone who has died?

No, the dead cannot be baptized.

What happens if a saved person dies without being perfect?

Once Christians leave their sinful bodies, nothing else is needed to receive glorified, sinless bodies.

Sources

Did Mary ever sin?

Yes, Mary sinned like all other humans except Jesus.

How many church ordinances/​sacraments are there?

The church has two ordinances: Baptism and Holy Communion.

What day of the week should Christians worship?

Christians worship on Sunday.

What is marriage?

Marriage is a covenant before God between one man and one woman.

Source

Is sex permissible outside marriage?

No, sex outside of marriage is not permissible.

Sources

When does a fetus become human?

Humanity begins at conception.

Sources

Is contraception permissible?

Yes, contraceptives are permissible.

Source

Should Christians fight in wars?

Yes, Christians should fight in just wars.

Source

Where does a Christian's soul go after death?

Christians immediately go to heaven when they die.

Sources