Philippians 1:6 KJV
Being confident of this very thing, that he which hath begun a good work in you will perform it until the day of Jesus Christ:
One limitation of being a human being is you would not know how an action you take will work out, even with the best intentions. As Christians, we can be confident about the future because not only does God know the future, He is the Future; He is the Beginning and the End after all. You do not need to worry about how the future will turn out if you do your best. The rest is up to God. “Never be afraid to trust an unknown future to a known God” (Corrie ten Boom).
Matthew 7:21 KJV
 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Christianity is not a fashion statement. It is surrendering one’s free will to God’s will entirely. “It is possible to recognize Christ’s Lordship but not submit to Him as Lord of your life. It is possible to be called a Christian but not be worthy of the call. It is possible to walk with Christ and not be like Christ. When you know and genuinely believe in His will, yet do your will out of logic, pleasure or convenience then you recognize His Lordship but His Lordship over your life” (JNA).
2 Timothy 4:7 KJV I have fought a good fight, I have finished my course, I have kept the faith:
A good way to not waste one’s life is to identify your God-given calling and beside all other endeavors, stick to it. “…If I wanted to come to the end of my life and not say, “I’ve wasted it!”, then I would need to press all the way in, and all the way up, to the ultimate purpose of God and join him in it…” (John Piper).
2 Corinthians 13:5 KJV  Examine yourselves, whether ye be in the faith; prove your own selves.
We update our résumés often when watching out for career opportunities. In the same way, while running the Christian race towards the goal which we’ve been called for, it is expedient to take time to check oneself to ensure we are moving forward and not in the same place we started. “The unexamined life is not worth living” (Socrates).