Ephesians 4:7, 11 NAS
7 But to each one of us grace was given according to the measure of Christ’s gift…
11 And He gave some as apostles, and some as prophets, and some as evangelists, and some as pastors and teachers,

Colossians 4:2-6 NIV
2 Devote yourselves to prayer, being watchful and thankful. 3 And pray for us, too, that God may open a door for our message, so that we may proclaim the mystery of Christ, for which I am in chains. 4 Pray that I may proclaim it clearly, as I should. 5 Be wise in the way you act toward outsiders; make the most of every opportunity. 6 Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone.

1 Peter 3:15-16 NIV
15 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, 16 keeping a clear conscience, so that those who speak maliciously against your good behavior in Christ may be ashamed of their slander.