People's motives in serving Christ vary from pure to sinful. However, other men’s motives should not rob us of the joy of Jesus Christ being preached.
After Christ removes the church, He will establish the time of Jacob’s trouble. After this, Christ will return as a thief in the night to make up His jewels.
The United States of America's government system of three branches (Legislative, Executive, and Judicial) was derived from Isaiah 33:22.
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)?