Here are several key scriptures that are powerful for evangelism, providing encouragement, guidance, and clarity on the mission of sharing the Gospel:

1. Matthew 28:19-20 (NIV)

"Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.”

2. Romans 1:16 (NIV)

"For I am not ashamed of the gospel, because it is the power of God that brings salvation to everyone who believes: first to the Jew, then to the Gentile."

3. Acts 1:8 (NIV)

"But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”

4. 1 Peter 3:15 (NIV)

"But in your hearts revere Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect,"

5. 2 Corinthians 5:20 (NIV)

"We are therefore Christ’s ambassadors, as though God were making his appeal through us. We implore you on Christ’s behalf: Be reconciled to God."

6. Matthew 9:37-38 (NIV)

"Then he said to his disciples, 'The harvest is plentiful but the workers are few. Ask the Lord of the harvest, therefore, to send out workers into his harvest field.'”

7. Romans 10:14-15 (NIV)

"How, then, can they call on the one they have not believed in? And how can they believe in the one of whom they have not heard? And how can they hear without someone preaching to them? And how can anyone preach unless they are sent? As it is written: 'How beautiful are the feet of those who bring good news!'"

8. Mark 16:15 (NIV)

"He said to them, 'Go into all the world and preach the gospel to all creation.'"

9. John 20:21 (NIV)

"Again Jesus said, 'Peace be with you! As the Father has sent me, I am sending you.'"

10. Colossians 4:5-6 (NIV)

"Be wise in the way you act toward outsiders; make the most of every opportunity. Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone."

11. 2 Timothy 4:2 (NIV)

"Preach the word; be prepared in season and out of season; correct, rebuke and encourage—with great patience and careful instruction."

12. Isaiah 6:8 (NIV)

"Then I heard the voice of the Lord saying, 'Whom shall I send? And who will go for us?' And I said, 'Here am I. Send me!'"

13. John 3:16 (NIV)

"For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life."

14. 1 Corinthians 9:22-23 (NIV)

"To the weak I became weak, to win the weak. I have become all things to all people so that by all possible means I might save some. I do all this for the sake of the gospel, that I may share in its blessings."

15. Luke 19:10 (NIV)

"For the Son of Man came to seek and to save the lost."

These scriptures provide a strong foundation for the work of evangelism, reminding us of the call to spread the Gospel, the importance of being prepared, and the power and presence of God as we reach out to others.