The Bible addresses the reality of angels, Satan, and demons. All angels were created holy, but because they have volition, some rebelled against God and defied His will. Holy angels are spirit beings created by God to serve Him and minister to believers (Matt 16:27; 26:53; 1 Tim 5:21; Heb 1:14). They are sometimes depicted as messengers carrying out God’s will (Dan 9:20-22; 10:1-21), such as when Gabriel announced the birth of Jesus (Luke 1:26-38). Lucifer, an angel of the class of cherubim, was created perfect, but became Satan at the time of his rebellion against God (Isa 14:12-15; Ezek 28:12-17). Satan convinced a third of the angels to follow him in his rebellion (Rev 12:4, 7), and his kingdom of darkness was expanded to include the earth when he persuaded Adam and Eve to follow him rather than God (Gen 3:1-8). At the time of the fall, the first humans—God’s theocratic administrators (Gen 1:26-28)—gave Satan the title deed to the earth (Luke 4:6). This explains why Jesus referred to Satan as “the ruler of this world” (John 12:31; 14:30; 16:11). Other passages of Scripture call Satan “the god of this world” (2 Cor 4:4), and “the prince of the power of the air” (Eph 2:2), informing us “that the whole world lies in the power of the evil one” (1 John 5:19). But Satan is no benevolent dictator. Scripture reveals he rules as a tyrant who has “weakened the nations” (Isa 14:12), and currently “deceives the whole world” (Rev 12:9; cf. Rev 20:3). Satan and his angels will inevitably be assigned to the Lake of Fire (Matt 25:41; Rev 20:10).

Angels, both good and evil, influence the world around us. God used angels to protect His prophet Elisha (2 Ki 6:8-17), to destroy an Assyrian army (2 Ki 19:35), and to protect the baby Jesus from Herod the Great (Matt 2:13). Evil spirits were used to discipline King Saul (1 Sam 16:14-16), to influence King Ahab through his false prophets (1 Ki 22:19-23), and will be used in the future to control human kings who defy the Lord (Rev 16:13-14). Today, evil spirits influence politics, marriage, family, education, judicial systems, economics, entertainment, and society as a whole, promoting injustice, corruption, or opposition to God and His Word. Scripture reveals that “our struggle is not against flesh and blood, but against the rulers, against the powers, against the world forces of this darkness, against the spiritual forces of wickedness in the heavenly places” (Eph 6:12). While believers are not called to fear such forces, we are encouraged to stand firm through prayer, the armor of God, and reliance on the Holy Spirit (Eph 6:13-18).

Dr. Steven R. Cook

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Because of sin and death, everyone is separated from God and powerless to save themselves (Rom 3:10, 23). We are sinners in Adam (Rom 5:12; 1 Cor 15:21-22), sinners by nature (Rom 7:14-25; 13:12-14), and sinners by choice (Isa 59:2; Jam 1:14-15). Furthermore, we are helpless to solve the sin problem and save ourselves (Rom 5:6-10; Eph 2:1-3). Good works have no saving merit before God (Isa 64:6; Rom 4:1-5; Gal 2:16, 21; Eph 2:8-9; Tit 3:5). We cannot save ourselves any more than we can jump across the Grand Canyon or throw rocks and hit the moon. But God made a way for sinful people to be reconciled to Himself, and that’s where the gospel comes in.

The gospel is the good news that God provided a solution to the problem of sin, and that solution is the cross of Christ (1 Cor 1:18). God the Son—the second Person of the Trinity—came into the world by human birth (Isa 7:14; Luke 1:30-35; John 1:1, 14; Col 2:9), lived a perfectly righteous life (Matt 5:17-18), and willingly died in our place and bore the punishment for our sins. Jesus lived the righteous life that God demands and committed no sin (2 Cor 5:21; Heb 4:15; 1 Pet 2:22; 1 John 3:5), and He died for us on the cross and paid the penalty for all our sins (Isa 53:1-12; Mark 10:45; Rom 5:8; 1 Cor 15:3-4; 1 John 2:2). Peter informs us that Jesus died in our place, “the just for the unjust, that He might bring us to God” (1 Pet 3:18). The cross is God’s righteous solution to the problem of sin, as well as His greatest display of love toward sinners. At the cross, God judged our sin as His righteousness required, and pardons the sinner as His love desires. To understand the cross of Christ is to understand the heart of God toward a fallen world He wants to save. In order for us to be reconciled to God, we must simply trust in Jesus as our Savior (John 3:16; 20:30-31; Acts 4:12; 16:30-31). The gospel message is that “Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures” (1 Cor 15:3-4). When we trust in Christ as our Savior, we are forgiven all our sins (Acts 10:43; Eph 1:7; Col 1:14), given eternal life (John 3:16; 10:27-28), and receive the righteousness of God as a free gift (Rom 5:17; 2 Cor 5:21; Phil 3:9).

Dr. Steven R. Cook

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The Bible reveals God as the Creator and Sustainer of the universe, that “God created the heavens and the earth” (Gen 1:1), that He “made the world and all things in it, since He is Lord of heaven and earth” (Acts 17:24), for “By faith we understand that the worlds were prepared by the word of God, so that what is seen was not made out of things which are visible” (Heb 11:3). The creation account in Genesis 1-2 describes how God created the world and everything in it over six literal days (cf., Ex 20:8-11).

The Bible reveals that God made mankind in His image, as Scripture states, “God created man in His own image, in the image of God He created him; male and female He created them” (Gen 1:27). People are not the product of evolutionary processes over millions of years, but a special creation by God Himself. Even after the historic fall of Adam and Eve, all people are said to be “in the image of God” (Gen 9:6), and “in the likeness of God” (Jam 3:9). Despite the fall of humanity into sin, the image of God in humanity remains intact.

Sin and death were introduced into God’s creation when the first human, Adam, sinned against God. The word sin is found throughout Scripture, and both the Hebrew and Greek share the same basic meaning. The Hebrew word chata (חָטָא) means “to miss the target, or to lose the way,”[1] and the Greek word hamartano (ἁμαρτάνω) is defined as “miss the mark, err, or do wrong.”[2] Sin is when we transgress God’s law and depart from His intended path. The apostle John states, “Everyone who practices sin also practices lawlessness; and sin is lawlessness” (1 John 3:4). Death means separation.[3] Adam’s sin immediately brought spiritual death (Gen 2:15-17; 3:1-7), and later, physical death (Gen 5:5). Though Adam was made spiritually alive again (Gen 3:21), his single sin introduced death, in every form, into the world (Rom 5:12-14; 1 Cor 15:21-22). Three major kinds of death are mentioned in Scripture, and these include: 1) spiritual death, which is separation from God in time (Gen 2:16-17; 3:1-7; Rom 5:12; 1 Cor 15:22; Eph 2:1-2; Col 2:13-14), 2) physical death, which is the separation of the soul from the body (Gen 35:18-19; Eccl 12:7; 2 Cor 5:8; Phil 1:23-24; 2 Tim 4:6), and 3) eternal death (aka the “second death”), which is the perpetuation of physical and spiritual separation from God for all eternity (Rev 20:11-15).

Dr. Steven R. Cook

[1] Ludwig Koehler et al., The Hebrew and Aramaic Lexicon of the Old Testament (Leiden: E.J. Brill, 1994–2000), 305.

[2] William Arndt et al., A Greek-English Lexicon of the New Testament and Other Early Christian Literature (Chicago: University of Chicago Press, 2000), 49.

[3] See my article on Life, Death, and Eternity for a fuller explanation.