Every unsaved person will have windows of opportunities when he becomes most receptive to the gospel of Christ. The Devil works hard to keep people in darkness and will distract them by every means necessary (i.e., the death of a loved one, a crying child, a ringing phone, busyness, etc.). The salvation of a soul involves a spiritual battle that can only be won by the Lord’s intervention. There is a window of time when the lost are most receptive to the gospel, likewise suggesting only a window of opportunity for the saved to speak for Christ. This is the very reason the apostle Paul stressed the importance of the saints of God beseeching the Lord to open to them a door of utterance (Ephesians 6:19).
A witness is one who testifies to the certainty of an event. As such, the apostles gave witness to the resurrection of the Lord Jesus Christ. By doing so, they were declaring the resurrection to be an absolute truth. The disciples physically witnessed the fact that the Lord Jesus Christ had been put to death, but was alive and well. Although no believer today physically saw the birth, life, death, burial, or resurrection of the Lord Jesus Christ, we can and should still testify to its truthfulness. In order to offer an adequate witness of the Lord’s saving grace, an individual must first have experienced the new birth combined with the witness of God’s indwelling Spirit (1 John 5:10).
