Many believers think that if they have not come out of drug addiction or some other (what they consider big sin) that they do not have a testimony. Nothing could be further from the truth. We all have the testimony of Jesus. He is the Spirit of prophecy or speaking forth the mind of God (see Revelation 19:10). The mind of God for you and I is Jesus and His redemptive work. So praise the Lord! You and I have an awesome Testimony! His name is Jesus!