What Doctrines of Christianity Do We All Need to Know?

Angels also guard dead believers’ tombs, such as the angel who guarded Jesus’ tomb and the archangel Michael, who guarded Moses’s body when Satan was trying to take Moses’ soul since he had murdered the Egyptian in Jude 9.

Lastly, angels come with Christ at His Second Coming, and they also administer the wrath of God during times of the Tribulation. Demons are the angels that follow Satan instead of following God.

There are two different types of demons; the ones who have the freedom to roam and those who are confined, either temporarily or permanently. Demons are very much present in this age, but God has ultimate power over them and Satan.

Demons are depicted as beasts, such as jackals, owls, and goats (Isaiah 13:21). Demons complete what the devil wants them to do, which is to cause chaos and havoc in the life of man and to go against God. Satan was the most beautiful of all angels (Ezekiel 28).

Satan chose to not follow God and caused sin to enter the human race. Satan is evil, horrible, wretched, a liar, a deceiver, and wicked. He is God’s ultimate enemy; however, all demons and Satan will ultimately meet their end in the lake of fire (Revelation 20:10).

Man is made in the image of God (Genesis 1:27). God created everything and that includes mankind. God created man on the sixth day of creation, and He declared everything He had made to be good (Genesis 1:31).

God created man from the dust as the Scripture states; “Then the LORD God formed a man from the dust of the ground and breathed into his nostrils the breath of life, and the man became a living being” (Genesis 2:7). Mankind was not the product of evolution nor part of an evolutionary process.

Evolutionary processes try to teach that man has been evolving since the Big Bang and that mankind is seen as animals; however, God separates us from animals. Man is made in the image of God, and this is what makes mankind unique of God’s creation.

While man and animals do have the same Creator, man does not have the same purpose. Mankind was created to be the image of God for His glory, to serve Him, and to love Him. Human beings only exist because of God, and we owe our whole existence to Him.

Furthermore, man has many aspects to his immaterial, self-including a soul, a spirit, a heart, a conscience, a mind, flesh, and free will. Mankind is made in the image of God also by the characteristic that man’s soul is immortal, just as God is immortal.

Believers in Christ will be with God forever, in heaven, throughout the Millennial, and in the Eternal State, while unbelievers will continue to exist in hell and in the lake of fire (2 Peter 3:13; Revelation 21:4). Mankind is meant to worship God and praise Him always.

Sin is anything that goes against God and what He Stands for. Sin was not created by God, and God does not approve of sin. In fact, He cannot even stand in the presence of sin, and that is why He sent Jesus to die for mankind for us to be able to stand before Him, righteous by Jesus Christ’s blood.

There are many Greek and Hebrew words used for sin, with the most common term being the Greek word of hamartano, which means to miss the mark or to fall short.

In the Book of Romans, Paul states, “For all have sinned and fall short of the glory of God” (3:23). God is holy, and man is not. Therefore, we could never earn our way to forgiveness for our sins.

Only by Christ’s sacrifice on the cross can we be saved. Sin was first seen during the times of the angels before the world was created. Satan was an angel as were the demons, but they chose to sin and turn away from God which happened before the creation of the world (Isaiah 14:12-14).

Sin came into the human race at the time of the Fall of Man (Genesis 3). However, our sinful flesh will be gone once we are in heaven, or when the rapture occurs, for we shall be changed into our new bodies without our sinful nature (2 Corinthians 5:1-5).

Sin is a free choice on the part of the believer. Mankind has freely chosen to sin with our free will, and sin inhibits our relationship with God. Our relationship with God can only be restored by placing faith in His Son and living in obedience to Him.

Mankind is totally and completely depraved, and only by the blood shed for us on the cross by Christ can we be saved (Acts 4:12). Mankind is not complete within itself as the soul needs Jesus. Man is born into sin as a result of the Fall, and we inherited Adam’s sin nature.

As in the Psalms, all are born into sin, as David states, “Surely I was sinful at birth, sinful from the time my mother conceived me” (51:5).

Every person needs to accept Jesus as Savior and Lord to be redeemed from their sinful nature and to be able to have eternal life with Him forever in heaven.

For further reading:

If There Is One Truth, Why Are There So Many Doctrines?

Core Doctrines of the Faith That Every Christian Should Know

What Is the Difference Between ‘Your Truth’ and The Truth?

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Vivian Bricker loves Jesus, studying the Word of God, and helping others in their walk with Christ. She has earned a Bachelor of Arts and Master's degree in Christian Ministry with a deep academic emphasis in theology. Her favorite things to do are spending time with her family and friends, reading, and spending time outside. When she is not writing, she is embarking on other adventures.