Our witness to the world is found in our testimony. Your testimony and mine does not have to include every deed that you have done but it is supposed to show that God has saved you from your mistakes. All of us have them. Some are worse than others but even those who aren’t old enough to have done as much as others, God can save you from all of them.
Some people tell preachers that they have been too bad or even too evil to be considered as a convert to Christianity. There are no such people! God has accepted those who have been murderers, thieves, drug dealers and drug users, harlots and prostitutes and He will accept you as a child of His through Jesus Christ because you can reach someone that no one else can.
Your testimony is powerful enough to bring someone into the family of God and it is possible that you are the only person that can reach that person. They may belong to another church or they may not go to church but if you can talk to them, God will give you the words that can bring them into the family. It may even be someone who has known you for a long time. They know your past and what you did in years past before God changed your heart to serve Him. That person doesn’t exist if you have put away your sinful life and turned to follow Jesus. You cannot make them see the change, although they may see it but they don’t want that change. Sometimes they will reject your testimony because of pride or anger at you because of some slight or emotional hurt that you caused many years ago.
Ask the Lord to melt their hearts so that they can receive His message for their salvation because it may be that only He and His Word can do what your testimony and your changed life cannot do. Even Jesus could do few miracles in His home town because they looked on Him as the Son of Joseph and they had watched Him grow up with His brothers and sisters. They said “he’s the carpenter’s son, where did he learn these things?”
God has used so many people in the past and He still uses circumstances and problems and people today to get people who have rejected Him to turn back to Him. He used many of Israel’s enemies to chastise them when they were disobeying His commandments. He raised up a ruler in Egypt to oppress the people as slaves so that He could judge Egypt and their gods. God can use your life and your testimony to change people’s lives today as well. It may be something you say or something that you do that could cause them to seek God for their life’s troubles and their salvation. It may be something that you write or a sermon or an inspiring post or link on Facebook that gets their attention and turns them toward God.
Only God knows how you will accomplish His will in your life and it may not happen until your death or afterward but God can accomplish His will through you in some way to bring others to a saving knowledge of Jesus Christ.