You can share a testimony
“A second time they summoned the man who had been blind. “Give glory to God by telling the truth,” they said. “We know this man is a sinner.” He replied, “Whether he is a sinner or not, I don’t know. One thing I do know. I was blind but now I see!” (John 9:24-25 NIV)
Testimony: a firsthand authentication of a fact. attestation, confirmation, corroboration, documentation, evidence, proof, substantiation, testament, testimonial, validation, witness
A testimony is telling what happened to you
In the passage at top, religious leaders questioned a man who had been healed from lifelong blindness. They tried to trap him with a theological question. But, he instead said, “Whether he is a sinner or not, I don’t know. One thing I do know. I was blind but now I see!” A testimony is simply telling what happened to you. You don’t have to understand theology, be eloquent, understand completely, or be a long-time believer, you just tell what happened to you. That’s what the blind man did. It’s difficult for someone to argue about your personal experience.
“We have seen it and testify to it”
“That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked at and our hands have touched—this we proclaim concerning the Word of life. The life appeared; we have seen it and testify to it, and we proclaim to you the eternal life, which was with the Father and has appeared to us. We proclaim to you what we have seen and heard, so that you also may have fellowship with us. And our fellowship is with the Father and with his Son, Jesus Christ. We write this to make our joy complete.” (1 John 1:1-4 NIV)
Always be prepared to give a defense
“But in your hearts honor Christ the Lord as holy, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you.” (1 Peter 3:15 ESV)
Therefore…
“Oh give thanks to the Lord, for he is good, for his steadfast love endures forever! Let the redeemed of the Lord say so, whom he has redeemed from trouble.” (Psalms 107:1-2 ESV)