Want to know why you should be a witness for Jesus Christ? Because He died for all, and therefore, all died. Because you died with Christ, you should no longer live for yourself (2 Corinthians 5:15). Because you no longer live for yourself, you are no longer the same person you were. “What this means is that those who become Christians become new persons. They are not the same anymore, for the old life is gone. A new life has begun” (v. 17)!
God has given you, as a “new creation” believer, the task of reconciling people to Him (v. 18). Your message of reconciliation is this:
“For God was in Christ, reconciling the world to himself, no longer counting people’s sins against them. This is the wonderful message he has given us to tell others” (v. 19). Legally, the world has already been forgiven in Christ; thus, your job is to be His ambassador, imploring people on Christ’s behalf to be reconciled to God (v. 20).
The conclusion? You are dead to your former life and thus unconcerned about public opinion. You live only to inform the lost that Jesus reconciled them to God. Some will receive, some will reject, but all must be told. That, dear ambassador, is your mission!