First, We Have Authority. Jesus had authority and as Christians we have it s well. When Jesus called and commissioned His disciples to go into the world, He sent them out with power and authority to heal the sick, cast out devils and to proclaim His truth. He even went os fas as to tell them to "Go and make disciples and teach all nations."
Second, We Are Called to Teach. When Jesus called the twelve to be His disciples, He called and challenged them to be teachers of His word. Jesus taught His disciples so that they mgiht teach others. As followers and disciples of Jesus Christ, once we cecome saved we are summoned, commissioned and obligated by God to go and win people to Christ and to help them grow in the study of the Word (to teach). The scriptures tell us that every child of God ought to "Study to Show thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth" 2 Timothy 2:15
Third, We Must Be Witnesses. When we apply the directives and imperatives the Lord has for us as Christians, our lives ought to line up with Christ, the word of God so that we can become balanced, have greater spiritual stability and become greater witnesses for Christ. In doing this we can fulfill the Great Commission to:
Affirm - Connect with an open heart (Mark 12:29-31)