The greatest advertisement for Christianity is Christians. The worst advertisement for Christianity is Christians.
We can either attract or repel by the way we act or live. There will always be the offence of the cross and the reaction of conviction and antagonism to the faith, but when it is the lovelessness of a Christian life or its selfishness that repels, then a terrible stumbling block is put in the way of seekers for God.
Evangelicals ought to be attractors to Christ. We claim to have found Christ as our Saviour and that we live under his Lordship. We claim to have been born again of the Holy Spirit and that we have the mind of God opened to us. We claim the Scriptures have become alive to us and we regard them as the Word of God. We claim to live in the Spirit and to be maturing in the fruit of the Spirit.