The leaders saw that Peter and John were not afraid to speak, and they understood that these men had no special training or education. So they were amazed. Then they realized that Peter and John had been with Jesus. [Acts 4:13 (NCV)]
Sometimes, we Christians use religious jargon or “Christianese” when speaking. In fact, we might “testify” or “witness” instead of talk about our faith and “fellowship” instead of meet with friends! If, while speaking with non-believers, we use words we (and our fellow church-goers) can barely define we may as well be speaking a foreign language. Tossing about words like propitiation, sanctification, justification, glorification, conviction and reconciliation show that we can talk the talk, but what does it mean to anyone else? Let’s remember that Christianity isn’t a secret society like a lodge, college fraternity or sorority. There’s neither a secret handshake nor a password required for admittance.
When sharing our faith [witnessing], let’s not make the mistake of making Christianity harder than it is. Man rejected God [sinned] and we all stand guilty before God [condemnation]. Mankind’s sin alienated us from God but Jesus’s actions restored mankind’s relationship with God [reconciliation]. Jesus is God in flesh [incarnation]. Although the punishment for sin is death, Jesus paid that price [redemption]. Because Jesus took our punishment on the cross [propitiation/substitutionary atonement], we are no longer considered guilty [justification]. Jesus rose from the dead [resurrection]. When we believe in [accept] Jesus Christ and decide to follow Him [salvation], we turn from our old ways [repent] and are changed [born again/regeneration]. Through the power of the Holy Spirit, we then grow more and more like Christ [sanctification]. Salvation is not something we earn [works], but something God freely gives to us [grace] when we believe in Jesus [faith].
Jesus didn’t use fancy words; he used parables and metaphors to make his point. Better yet, he explained his parables so everyone could understand the point he was making. The men he chose to spread the faith, men like Peter and John, were simple men. They didn’t require impressive words to preach or heal; they just needed faith! The bracketed words in the previous paragraph weren’t necessary and I’m not even sure I even used them all correctly! We don’t need $10 words or a special vocabulary to talk about Jesus; we just need to be sure we’re speaking the same language as the people with whom we’re talking.
Too many of us have a Christian vocabulary rather than a Christian experience. We think we are doing our duty when we’re only talking about it. [Charles F. Banning]
Devotions of the Heart 