Question: "What does the Bible say about pandemic diseases/sicknesses?"
Answer: Various outbreaks of pandemic diseases, such as the coronavirus, have prompted many to ask why God allows—or even causes—pandemic diseases and whether such illnesses are a sign of the end times. The Bible, particularly the Old Testament, describes numerous occasions when God brought plagues and diseases on His people and on His enemies “to make you see my power” (Exodus 9:14, 16). He used plagues on Egypt to force Pharaoh to free the Israelites from bondage, while sparing His people from being affected by them (Exodus 12:13; 15:26), thus indicating His sovereign control over diseases and other afflictions.
God also warned His people of the consequences of disobedience, including plagues (Leviticus 26:21, 25). On two occasions, God destroyed 14,700 people and 24,000 people for various acts of disobedience (Numbers 16:49 and 25:9). After giving the Mosaic Law, God commanded the people to obey it or suffer many evils, including something that sounds like disease: “The Lord will strike you with wasting disease, with fever and inflammation . . . which will plague you until you perish” (Deuteronomy 28:22). These are just a few examples of many plagues and diseases God caused.
It’s sometimes hard to imagine our loving and merciful God displaying such wrath and anger toward His people. But God’s punishments always have the goal of repentance and restoration. In 2 Chronicles 7:13–14, God said to Solomon, “When I shut up the heavens so that there is no rain, or command locusts to devour the land or send a plague among my people, if my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then will I hear from heaven and will forgive their sin and will heal their land.” Here we see God using disaster to draw His people to Himself, to bring about repentance and the desire to come to Him as children to their heavenly Father.
In the New Testament, Jesus healed “every disease and every sickness,” as well as plagues in the areas He visited (Matthew 9:35; 10:1; Mark 3:10). Just as God chose to use plagues and disease to show His power to the Israelites, Jesus healed as an exhibition of the same power to verify that He was truly the Son of God. He gave the same healing power to the disciples to verify their ministry (Luke 9:1). God still allows sickness for His own purposes, but sometimes disease, even worldwide pandemics, are simply the result of living in a fallen world. There is no way to determine whether or not a pandemic has a specific spiritual cause, but we do know that God has sovereign control over all things (Romans 11:36) and will work all things together for the good of those who know and love Him (Romans 8:28).
The spread of sicknesses such as the coronavirus is a foretaste of pandemics that will be part of the end times. Jesus referred to future plagues associated with the last days (Luke 21:11). The two witnesses of Revelation 11 will have power “to strike the earth with every kind of plague as often as they want” (Revelation 11:6). Seven angels will wield seven plagues in a series of final, severe judgments described in Revelation 16.
The appearance of pandemic diseases may or may not be tied to God’s specific judgment of sin. It could also simply be the result of living in a fallen world. Since no one knows the time of Jesus’ return, we must be careful about saying global pandemics are proof that we are living in the end times. For those who do not know Jesus Christ as Savior, disease should be a reminder that life on this earth is tenuous and can be lost at any moment. As bad as pandemics are, hell will be worse. The Christian, however, has the assurance of salvation and the hope of eternity because of the blood of Christ shed on the cross for us (Isaiah 53:5; 2 Corinthians 5:21; Hebrews 9:28).
How should Christians respond to pandemic diseases? First, do not panic. God is in control. The Bible says the equivalent of "do not fear" over 300 times. Second, be wise. Take reasonable steps to avoid exposure to the disease and to protect and provide for your family. Third, look for opportunities for ministry. Often when people are fearful for their lives, they are more willing to have conversations about eternity. Be bold and compassionate in your sharing of the Gospel, always speaking the truth in love (Ephesians 4:15).