Another reason Christians should share the gospel with others is simply that Jesus has commanded us to do it. “And he said to them, “Go into all the world and proclaim the gospel to the whole creation.” (Mark 16:15 ESV) Evangelism isn’t something that God has merely called some Christians to do. Every redeemed saint has the responsibility to share the good news of how they became forgiven, free and brought into right relationship with God. Simple obedience to this clear command must be put to practice by every person calls Jesus their Lord. Our obedience to Christ displays our love for Him and His lordship in our lives. Jesus said “If you love me, you will keep my commandments” (John 14:15 ESV). And he said “Why do you call me ‘Lord, Lord,’ and not do what I tell you? Everyone who comes to me and hears my words and does them, I will show you what he is like: he is like a man building a house, who dug deep and laid the foundation on the rock. And when a flood arose, the stream broke against that house and could not shake it, because it had been well built. (Luke 6:46-48 ESV).
Also, God has chosen to save sinners through proclamation of the gospel and He has chosen you and I to be those who carry that 
gospel. …it pleased God through the folly of what we preach to save those who believe.(1 Corinthians 1:21 ESV) How then will they call on him in whom they have not believed? And how are they to believe in him of whom they have never heard? And how are they to hear without someone preaching? And how are they to preach unless they are sent? As it is written, “How beautiful are the feet of those who preach the good news!” But they have not all obeyed the gospel. For Isaiah says, “Lord, who has believed what he has heard from us?” So faith comes from hearing, and hearing through the word of Christ. (Romans 10:14-17). It is a glorious privilege and responsibility that we have been given by God to be able to share a message that brings eternal salvation to those who believe and receive it. Let us not neglect faithful stewardship of the gospel message. Beware of getting weighed down and distracted by good activities while forgetting the God-given task of evangelism.
May you and I have beautiful feet that carry the gospel message into all parts of the world.
One reason every Christian should evangelize is Jesus did it. He is our example of how each of us ought to live. After Jesus evangelized the woman at the well in John 4, his disciples urged him to eat some food, because they knew he hadn’t eaten anything. But Jesus told his disciples that He had food they didn’t know about. He said “my food is to do the will of Him who sent Me, to finish His work” (John 4:34). Jesus was nourished from doing the will of God and namely the work of evangelism. He found fulfillment, pleasure & satisfaction in doing the will of God just like one does in eating a delicious meal. Christ lived every day of His life pursing the will of the Father and pleasing Him. He knew what He was here for and didn’t waste any time. Before He died Jesus was able to say “I have finished the work you have given me to do” (John 14:4) Consider these passages:
“The Spirit of the Lord is upon me, because he has anointed me
For The Gospel's Sake 