It is imperative that each believer not only do what is right, but also examine himself to make sure that he is doing what is right for the right reasons.
How would making your motive match the Lord's motive change how you approach the Christian life (from witnessing to praying to Bible reading and so on)?
The Bible points to the unsaved man as an enemy of God (Romans 5:10). Fortunately, those who have trusted Christ as Saviour have been reconciled to God through the blood of Jesus Christ (Romans 5:10; 2 Corinthians 5:18). This reconciliation transforms the enemies of God into His ambassadors (2 Corinthians 5:20). What a wonderful salvation! But there is more! The Lord Jesus has given the ministry of reconciliation to all those who have been reconciled. As such, we are to submit ourselves to the work of telling others how they too can be reconciled to God. Paul understood this and declared that he was a “debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise” (Romans 1:14).
