Bottom line: We can steward the gospel because we have His promises of His power, of success, and of reward.

Jesus promised us His presence and power through the Holy Spirit. Because we have access to His power to flow in and through us, we should be motivated to be a faithful witness for Jesus. We also have the example of the early church's successes. If they did it, we can do it too. Their successes should motivate us to be faithful witnesses for Jesus. But there is another promise we have been given, and that is the promise of reward. God seeks to positively motivate us with the understanding that witnessing and being engaged in winning the lost to Jesus will be rewarded. Paul mentions the "soul winners" crown or the "crown of rejoicing" as being those who we have a part in winning to Jesus.