Not everyone is called to be a teacher, but those who are richly indwelt by the word of Christ do teach and admonish one another. Not everyone is called to be a missionary to unreached tribes, to be an Evangelist, but we are to make disciples as we’re going, wherever it is God has us going.
We need wisdom, and maturity, and love, and the right sort of burden here. If we do not love God’s name and desire God’s worship among all the peoples we do not really grasp God’s authority, or glory, or grace. And yet most Christians in the body of Christ are not called/gifted by God to be vocational missionaries, regardless of the “guilt” that has been easy for furloughing missionaries to heap on at missions conferences.
More burden for the lost to hear the good news, and more blessing for our lives because of the good news. More light and salt in our good works before men, and more encouragement of those who are given gifts and desire to GO.
Our communion at the Lord’s Table is part of this process. This meal ought not give us an excuse to be lazy, it is food for our joy in the good news. And this meal, while only celebrated by believers, is a declaration of good news to those who don’t believe.
The Supper isn’t capital E Evangelism, and yet “as often as you eat this bread and drink the cup, you proclaim the Lord’s death until He comes” (1 Corinthians 11:26). The Supper belongs with God’s own mission to make a people for Himself.