In fact, the Bible tells us that God created a “very good” world. 

Genesis 1:31 (NKJV)

31. Then God saw everything that He had made, and indeed it was very good. 

However, mankind (Adam & Eve) rejected God and chose to disobey the only rule God gave. As a result of their sin, suffering and death entered into the world (Genesis 3).

We now live in a fallen and imperfect world that afflicts all human beings, reminding them that they “are but dust” (Ps. 103:14) and one day “to dust (we) shall return” (Gen.3:19). No matter how careful or health-conscious people may try to be, sickness and, ultimately death is inevitable.

Jesus Himself did not conceal the fact from us that there is suffering in this world: 

John 16:33 (NKJV)

33. These things I have spoken to you, that in Me you may have peace. In the world you will have tribulation; but be of good cheer, I have overcome the world.”

We should note that in the end, we have a promise that there will come a new world with no suffering;

Revelation 21:3-4 (NKJV)

3. And I heard a loud voice from heaven saying, “Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people. God Himself will be with them and be their God. 

4. And God will wipe away every tear from their eyes; there shall be no more death, nor sorrow, nor crying. There shall be no more pain, for the former things have passed away.”

Lastly, we need to note two points of view behind this question – Man’s point of view and God’s point of view.

From man’s point of view, pain is unnecessary, and no one deserves to go through it. In God’s eternal point of view, pain is a part of this earthly life (resulting from mankind’s rebellion against Him). Still, nonetheless, God can achieve His plans and purposes through it, ultimately for His glory. 

Suffering helps us to understand our need for God. Suffering helps us to relate to others who go through the same issues we went through. 

But the wonderful part about the Christian faith is that we know even Christ Himself suffered, and so He can sympathize with us as we go through it. 

In conclusion, instead of shying away from this topic of suffering, Christians should use this as a means to explain to unbelievers why suffering exists and, through the declaration of the Gospel message; show the world that through Christ’s suffering, we are redeemed and promised eternal life with Him where there will be no affliction.