A testimony can be a very effective element in a church service, a genuine supplement and co-worker to the sermon. Seeing a “normal” person speak of the difference the gospel has made in their life, or a more contemporary experience of applying the Word, or of living as a lover of a loving God . . . it can be powerful.
Equally, a testimony can leave a lasting impression for all the wrong reasons. The person is probably not experienced in public speaking. Consequently the delivery may be anything from engaging in its vulnerability to agonizing in its manner. Non-public speakers often will struggle to accurately determine amount of content for time available, or suitability of content.
The person leading the service has a responsibility when someone else is at the microphone. Most of the work of vetting and coaching, of course, should have been done beforehand. But even so, the MC needs to be able to maintain control of the presentation. If there is any doubt, then an interview approach will be much safer than handing over the reins completely.
What should go into the coaching and vetting beforehand? The testifier should be coached to give testimony to a person and what Christ has done for them. It is easy to slip into affirming something other than Christ.
It is also easy to slip into making personal testimony normative. “I benefitted so much so I really urge you to…” Stop! That’s sliding out of testimony and into preaching. If the person was asked to give a testimony, there is no reason to be coy about coaching them not to preach. People giving testimony often seem to struggle in knowing how to stop. There is the not very effective, “so, yeah, umm, yeah, that is what I wanted to say” type of ending. No harm done. But if they slip into the preaching of a sermon to try and tie a bow on what’s been said, it will usually backfire in some way (either with heresy, or discomfort, or undermining the value of the testimony, or whatever).
Just like preaching, many testimonies end with an uncomfortable call for commitment, when actually the motivation already generated by the testimony is simply being lost by such a call.
Let’s think about getting testimony back into church life, for many churches seem to have given up on it. But for it to work well, it has to be pre-coached.
There are some testimonies that turn into some kind of pointers on life and what everyone there should do. The shorter, brief testimonies I hear are much more powerful. When it goes away from what God has done for me to what that person thinks everyone else needs to hear it drags on drags on and on.
In a class I took the teacher suggested we should encourage folks to write out their testimony so that they have something to go off of rather than just shooting off at the hip.
Not sure I can judge the difference between a good one or bad, but to me short and sweet then sit down helps me the most.
Just my two cents.