For Christ did not send me to baptize but to preach the gospel, and not with words of eloquent wisdom, lest the cross of Christ be emptied of its power.
Christians are to be lights. Light has no sound, no voice. Christians are not to be foghorns. Christians preach the gospel by how they live empowered by the love of GOD. Yes, preach the gospel Christians and when absolutely necessary use words. 1 John 3:18,19 Matthew 5:14,15,16 1 Peter 2:12 Philippians 2:15,16