Christ’s command is that we are to be His witnesses, energized and equipped by the Holy Spirit. We are called to make visible the love and holiness of God, for the authenticity of our testimony rests on how we love one another and pursue holiness. We must also resolve to speak the Gospel, for it is the power of God for salvation.
A new commandment I give to you, that you love one another: just as I have loved you, you also are to love one another. By this all people will know that you are my disciples, if you have love for one another.” John 13:34-35 (ESV)
Do all things without grumbling or disputing, that you may be blameless and innocent, children of God without blemish in the midst of a crooked and twisted generation, among whom you shine as lights in the world, holding fast to the word of life, so that in the day of Christ I may be proud that I did not run in vain or labor in vain. Philippians 2:14-16 (ESV)
And now, Lord, look upon their threats and grant to your servants to continue to speak your word with all boldness, Acts 4:29 (ESV)