Basic beliefs of Christianity

What do Christians believe? Answering this question is not easy. As a religion, Christianity encompasses a wide range of denominations and faith groups. Within the broad umbrella of Christianity, beliefs can vary widely when each denomination subscribes to its own set of doctrines and practices.

Definition of Doctrine
Doctrine is something that is taught; a principle or creed of principles presented by acceptance or belief; a belief system. In Scripture, doctrine takes on a broader meaning. In the Gospel Dictionary of Biblical Theology this explanation of the doctrine is given:

“Christianity is a religion founded on a message of good news rooted in the meaning of the life of Jesus Christ. In Scripture, therefore, the doctrine refers to the whole body of essential theological truths that define and describe that message ... The message includes historical facts, such as those concerning the events of the life of Jesus Christ ... But it is deeper than just biographical facts ... The doctrine, therefore, is the teaching of the Scriptures on theological truths. "
I believe Christian
The three main Christian creeds, the Apostles' Creed, the Nicene Creed and the Athanasian Creed, together constitute a fairly complete summary of traditional Christian doctrine, expressing the fundamental beliefs of a wide range of Christian churches. However, many churches reject the practice of professing a creed, although they may agree with the content of the creed.

Main beliefs of Christianity
The following beliefs are fundamental for almost all Christian faith groups. They are presented here as the basic beliefs of Christianity. A small number of faith groups who consider themselves in the context of Christianity do not accept some of these beliefs. It should also be clear that slight variations, exceptions and additions to these doctrines exist within certain faith groups that fall under the broad umbrella of Christianity.

God the Father
There is only one God (Isaiah 43:10; 44: 6, 8; John 17: 3; 1 Corinthians 8: 5-6; Galatians 4: 8-9).
God is omniscient or "knows all things" (Acts 15:18; 1 John 3:20).
God is omnipotent or "omnipotent" (Psalm 115: 3; Revelation 19: 6).
God is omnipresent or "present everywhere" (Jeremiah 23:23, 24; Psalm 139).
God is sovereign (Zechariah 9:14; 1 Timothy 6: 15-16).
God is holy (1 Peter 1:15).
God is righteous or "just" (Psalm 19: 9, 116: 5, 145: 17; Jeremiah 12: 1).
God is love (1 John 4: 8).
God is true (Romans 3: 4; John 14: 6).
God is the creator of all that exists (Genesis 1: 1; Isaiah 44:24).
God is infinite and eternal. He has always been and will always be God (Psalm 90: 2; Genesis 21:33; Acts 17:24).
God is unchangeable. It does not change (James 1:17; Malachi 3: 6; Isaiah 46: 9-10).

The trinity
God is three in one or a Trinity; God the Father, Jesus Christ the Son and the Holy Spirit (Matthew 3: 16-17, 28:19; John 14: 16-17; 2 Corinthians 13:14; Acts 2: 32-33, John 10:30, 17:11 , 21; 1 Peter 1: 2).

Jesus Christ Son
Jesus Christ is God (John 1: 1, 14, 10: 30-33, 20:28; Colossians 2: 9; Philippians 2: 5-8; Hebrews 1: 8).
Jesus was born of a virgin (Matthew 1:18; Luke 1: 26–35).
Jesus became a man (Philippians 2: 1-11).
Jesus is fully God and fully man (Colossians 2: 9; 1 Timothy 2: 5; Hebrews 4:15; 2 Corinthians 5:21).
Jesus is perfect and sinless (1 Peter 2:22; Hebrews 4:15).
Jesus is the only way for God the Father (John 14: 6; Matthew 11:27; Luke 10:22).
The holy spirit
God is Spirit (John 4:24).
The Holy Spirit is God (Acts 5: 3-4; 1 Corinthians 2: 11-12; 2 Corinthians 13:14).
The Bible: Word of God
The Bible is the "inspired" or "breath of God", the Word of God (2 Timothy 3: 16-17; 2 Peter 1: 20-21).
The Bible in its original manuscripts is error-free (John 10:35; John 17:17; Hebrews 4:12).
God's plan of salvation
Humans were created by God in the image of God (Genesis 1: 26-27).
All people have sinned (Romans 3:23, 5:12).
Death came into the world through Adam's sin (Romans 5: 12-15).
Sin separates us from God (Isaiah 59: 2).
Jesus died for the sins of every single person in the world (1 John 2: 2; 2 Corinthians 5:14; 1 Peter 2:24).
Jesus' death was a replacement sacrifice. He died and paid the price for our sins so that we could live with him forever. (1 Peter 2:24; Matthew 20:28; Mark 10:45.)
Jesus rose from the dead in physical form (John 2: 19-21).
Salvation is a free gift from God (Romans 4: 5, 6:23; Ephesians 2: 8-9; 1 John 1: 8-10).
Believers are saved by grace; Salvation cannot be gained through human endeavors or good works (Ephesians 2: 8–9).
Those who reject Jesus Christ will go to hell forever after their death (Revelation 20: 11-15, 21: 8).
Those who accept Jesus Christ will live with him for eternity after their death (John 11:25, 26; 2 Corinthians 5: 6).
Hell is real
Hell is a place of punishment (Matthew 25:41, 46; Revelation 19:20).
Hell is eternal (Matthew 25:46).
End Times
There will be a rapture of the church (Matthew 24: 30-36, 40-41; John 14: 1-3; 1 Corinthians 15: 51-52; 1 Thessalonians 4: 16-17; 2 Thessalonians 2: 1-12).
Jesus will return to earth (Acts 1:11).
Christians will be raised from the dead when Jesus returns (1 Thessalonians 4: 14-17).
There will be a final judgment (Hebrews 9:27; 2 Peter 3: 7).
Satan will be thrown into the lake of fire (Revelation 20:10).
God will create a new paradise and a new earth (2 Peter 3:13; Revelation 21: 1).